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Katz J, Khatry SK, Shrestha L, Summers A, Visscher MO, Sherchand JB, Tielsch JM, Subedi S, LeClerq SC, Mullany LC. Impact of topical applications of sunflower seed oil on neonatal mortality and morbidity in southern Nepal: a community-based, cluster-randomised trial. BMJ Glob Health 2024; 9:e013691. [PMID: 38423547 PMCID: PMC10910473 DOI: 10.1136/bmjgh-2023-013691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/18/2023] [Indexed: 03/02/2024] Open
Abstract
INTRODUCTION Hospital-based studies have demonstrated topical applications of sunflower seed oil (SSO) to skin of preterm infants can reduce nosocomial infections and improve survival. In South Asia, replacing traditional mustard with SSO might have similar benefits. METHODS 340 communities in Sarlahi, Nepal were randomised to use mustard oil (MO) or SSO for community practice of daily newborn massage. Women were provided oil in late pregnancy and the first month post partum, and visited daily through the first week of life to encourage massage practice. A separate data collection team visited on days 1, 3, 7, 10, 14, 21 and 28 to record vital status and assess serious bacterial infection. RESULTS Between November 2010 and January 2017, we enrolled 39 479 pregnancies. 32 114 live births were analysed. Neonatal mortality rates (NMRs) were 31.8/1000 (520 deaths, 16 327 births) and 30.5/1000 (478 deaths, 15 676 births) in control and intervention, respectively (relative risk (RR)=0.95, 95% CI: 0.84, 1.08). Among preterm births, NMR was 90.4/1000 (229 deaths, 2533 births) and 79.2/1000 (188 deaths, 2373 births) in control and intervention, respectively (RR=0.88; 95% CI: 0.74, 1.05). Among preterm births <34 weeks, the RR was 0.83 (95% CI: 0.67, 1.02). No statistically significant differences were observed in incidence of serious bacterial infection. CONCLUSIONS We did not find any neonatal mortality or morbidity benefit of using SSO instead of MO as emollient therapy in the early neonatal period. Further studies examining whether very preterm babies may benefit are warranted. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry (NCT01177111).
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Affiliation(s)
- Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | | | - Laxman Shrestha
- Institute of Medicine, Tribhuvan University, Kirtipur, Nepal
| | - Aimee Summers
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Marty O Visscher
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | - James M Tielsch
- Global Health, George Washington University School of Public Health and Health Services, Washington, District of Columbia, USA
| | - Seema Subedi
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project, Kathmandu, Nepal
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Erchick DJ, Lama TP, Subedi S, Verhulst A, Guillot M, Khatry SK, LeClerq SC, Tielsch JM, Mullany LC, Katz J. Comparison of pregnancy and neonatal outcomes in a retrospective full pregnancy history survey versus population-based prospective records: a validation study in rural Sarlahi District, Nepal. J Health Popul Nutr 2023; 42:139. [PMID: 38066542 PMCID: PMC10709973 DOI: 10.1186/s41043-023-00472-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
INTRODUCTION Countries without complete civil registration and vital statistics systems rely on retrospective full pregnancy history surveys (FPH) to estimate incidence of pregnancy and mortality outcomes, including stillbirth and neonatal death. Yet surveys are subject to biases that impact demographic estimates, and few studies have quantified these effects. We compare data from an FPH vs. prospective records from a population-based cohort to estimate validity for maternal recall of live births, stillbirths, and neonatal deaths in a rural population in Sarlahi District, Nepal. METHODS We used prospective data, collected through frequent visits of women from early pregnancy through the neonatal period, from a population-based randomized trial spanning 2010-2017. We randomly selected 76 trial participants from three pregnancy outcome groups: live birth (n = 26), stillbirth (n = 25), or neonatal death (n = 25). Data collectors administered the Nepal 2016 Demographic and Health Surveys (DHS)-VII pregnancy history survey between October 22, 2021, and November 18, 2021. We compared total pregnancy outcomes and numbers of pregnancy and neonatal outcomes between the two data sources. We matched pregnancy outcomes dates in the two sources within ± 30 days and calculated measures of validity for adverse outcomes. RESULTS Among 76 participants, we recorded 122 pregnancy outcomes in the prospective data and 104 outcomes in the FPH within ± 30 days of each woman's total observation period in the trial. Among 226 outcomes, we observed 65 live births that survived to 28 days, 25 stillbirths, and 32 live births followed by neonatal death in the prospective data and participants reported 63 live births that survived to 28 days, 15 stillbirths, and 26 live births followed by neonatal death in the pregnancy history survey. Sixty-two FPH outcomes were matched by date within ± 30 days to an outcome in prospective data. Stillbirth, neonatal death, higher parity, and delivery at a health facility were associated with likelihood of a non-matched pregnancy outcome. CONCLUSIONS Stillbirth and neonatal deaths were underestimated overall by the FPH, potentially underestimating the burden of mortality in this population. There is a need to develop tools to reduce or adjust for biases and errors in retrospective surveys to improve reporting of pregnancy and mortality outcomes.
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Affiliation(s)
- Daniel J Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
| | - Tsering P Lama
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Seema Subedi
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | | | - Michel Guillot
- University of Pennsylvania, Philadelphia, PA, USA
- French Institute for Demographic Studies (INED), Aubervilliers, France
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Luke C Mullany
- Applied Physics Laboratory, Johns Hopkins University, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
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Erchick DJ, Lama TP, Khatry SK, Katz J, Mullany LC, Zavala E, LeClerq SC, Christian P, Tielsch JM. Supplementation with fortified balanced energy-protein during pregnancy and lactation and its effects on birth outcomes and infant growth in southern Nepal: protocol of a 2×2 factorial randomised trial. BMJ Paediatr Open 2023; 7:e002229. [PMID: 37923345 PMCID: PMC10626787 DOI: 10.1136/bmjpo-2023-002229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 08/26/2023] [Indexed: 11/07/2023] Open
Abstract
INTRODUCTION Many women in low and middle-income countries enter pregnancy with low nutritional reserves with increased risk of fetal growth restriction and poor birth outcomes, including small-for-gestational-age (SGA) and preterm birth. Balanced energy-protein (BEP) supplements have shown reductions in risk of stillbirth and SGA, yet variations in intervention format and composition and limited evidence on the impact of BEP during lactation on growth outcomes warrant further study. This paper describes the protocol of the Maternal Infant Nutrition Trial (MINT) Study, which aims to evaluate the impact of a fortified BEP supplement during pregnancy and lactation on birth outcomes and infant growth in rural Nepal. METHODS AND ANALYSIS MINT is a 2×2 factorial, household randomised, unblinded, efficacy trial conducted in a subarea of Sarlahi District, Nepal. The study area covers six rural municipalities with about 27 000 households and a population of approximately 100 000. Married women (15-30 years) who become pregnant are eligible for participation in the trial and are randomly assigned at enrolment to supplementation with fortified BEP or not and at birth to fortified BEP supplementation or not until 6 months post partum. The primary pregnancy outcome is incidence of SGA, using the INTERGROWTH-21st standard, among live born infants with birth weight measured within 72 hours of delivery. The primary infant growth outcome is mean length-for-age z-score at 6 months using the WHO international growth reference. ETHICS AND DISSEMINATION The study was approved by the Institutional Review Board (IRB) at Johns Hopkins Bloomberg School of Public Health, Baltimore, USA (IRB00009714), the Committee on Human Research IRB at The George Washington University, Washington, DC, USA (081739), and the Ethical Review Board of the Nepal Health Research Council, Kathmandu, Nepal (174/2018). TRIAL REGISTRATION NUMBER NCT03668977.
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Affiliation(s)
- Daniel J Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Tsering P Lama
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project Sarlahi (NNIPS), Kathmandu, Nepal
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project Sarlahi (NNIPS), Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Eleonor Zavala
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project Sarlahi (NNIPS), Kathmandu, Nepal
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
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Yan T, Mullany LC, Subedi S, Hazel EA, Khatry SK, Mohan D, Zeger S, Tielsch JM, LeClerq SC, Katz J. Risk factors for neonatal mortality: an observational cohort study in Sarlahi district of rural southern Nepal. BMJ Open 2023; 13:e066931. [PMID: 37709319 PMCID: PMC10503364 DOI: 10.1136/bmjopen-2022-066931] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/31/2023] [Indexed: 09/16/2023] Open
Abstract
OBJECTIVES To assess the association between maternal characteristics, adverse birth outcomes (small-for-gestational-age (SGA) and/or preterm) and neonatal mortality in rural Nepal. DESIGN This is a secondary observational analysis to identify risk factors for neonatal mortality, using data from a randomised trial to assess the impact of newborn massage with different oils on neonatal mortality in Sarlahi district, Nepal. SETTING Rural Sarlahi district, Nepal. PARTICIPANTS 40 119 pregnant women enrolled from 9 September 2010 to 16 January 2017. MAIN OUTCOME The outcome variable is neonatal death. Cox regression was used to estimate adjusted Hazard Ratios (aHRs) to assess the association between adverse birth outcomes and neonatal mortality. RESULTS There were 32 004 live births and 998 neonatal deaths. SGA and/or preterm birth was strongly associated with increased neonatal mortality: SGA and preterm (aHR: 7.09, 95% CI: (4.44 to 11.31)), SGA and term/post-term (aHR: 2.12, 95% CI: (1.58 to 2.86)), appropriate-for-gestational-age/large-for-gestational-age and preterm (aHR: 3.23, 95% CI: (2.30 to 4.54)). Neonatal mortality was increased with a history of prior child deaths (aHR: 1.53, 95% CI: (1.24 to 1.87)), being a twin or triplet (aHR: 5.64, 95% CI: (4.25 to 7.48)), births at health posts/clinics or in hospital (aHR: 1.34, 95% CI: (1.13 to 1.58)) and on the way to facilities or outdoors (aHR: 2.26, 95% CI: (1.57 to 3.26)). Risk was lower with increasing maternal height from <145 cm to 145-150 cm (aHR: 0.78, 95% CI: (0.65 to 0.94)) to ≥150 cm (aHR: 0.57, 95% CI: (0.47 to 0.68)), four or more antenatal care (ANC) visits (aHR: 0.67, 95% CI: (0.53 to 0.86)) and education >5 years (aHR: 0.75, 95% CI: (0.62 to 0.92)). CONCLUSION SGA and/or preterm birth are strongly associated with increased neonatal mortality. To reduce neonatal mortality, interventions that prevent SGA and preterm births by promoting ANC and facility delivery, and care of high-risk infants after birth should be tested. TRIAL REGISTRATION NUMBER NCT01177111.
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Affiliation(s)
- Tingting Yan
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Seema Subedi
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Elizabeth A Hazel
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Subarna K Khatry
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Nepal Eye Hospital Complex, Tripureshwor, Kathmandu, Nepal
| | - Diwakar Mohan
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Scott Zeger
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Department of Global Health, George Washington University School of Public Health and Health Services, Washington, DC, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Nepal Eye Hospital Complex, Tripureshwor, Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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Erchick DJ, Subedi S, Verhulst A, Guillot M, Adair LS, Barros AJD, Chasekwa B, Christian P, da Silva BGC, Silveira MF, Hallal PC, Humphrey JH, Huybregts L, Kariuki S, Khatry SK, Lachat C, Matijasevich A, McElroy PD, Menezes AMB, Mullany LC, Perez TLL, Phillips-Howard PA, Roberfroid D, Santos IS, ter Kuile FO, Ravilla TD, Tielsch JM, Wu LSF, Katz J. Quality of vital event data for infant mortality estimation in prospective, population-based studies: an analysis of secondary data from Asia, Africa, and Latin America. Popul Health Metr 2023; 21:10. [PMID: 37507749 PMCID: PMC10375772 DOI: 10.1186/s12963-023-00309-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
INTRODUCTION Infant and neonatal mortality estimates are typically derived from retrospective birth histories collected through surveys in countries with unreliable civil registration and vital statistics systems. Yet such data are subject to biases, including under-reporting of deaths and age misreporting, which impact mortality estimates. Prospective population-based cohort studies are an underutilized data source for mortality estimation that may offer strengths that avoid biases. METHODS We conducted a secondary analysis of data from the Child Health Epidemiology Reference Group, including 11 population-based pregnancy or birth cohort studies, to evaluate the appropriateness of vital event data for mortality estimation. Analyses were descriptive, summarizing study designs, populations, protocols, and internal checks to assess their impact on data quality. We calculated infant and neonatal morality rates and compared patterns with Demographic and Health Survey (DHS) data. RESULTS Studies yielded 71,760 pregnant women and 85,095 live births. Specific field protocols, especially pregnancy enrollment, limited exclusion criteria, and frequent follow-up visits after delivery, led to higher birth outcome ascertainment and fewer missing deaths. Most studies had low follow-up loss in pregnancy and the first month with little evidence of date heaping. Among studies in Asia and Latin America, neonatal mortality rates (NMR) were similar to DHS, while several studies in Sub-Saharan Africa had lower NMRs than DHS. Infant mortality varied by study and region between sources. CONCLUSIONS Prospective, population-based cohort studies following rigorous protocols can yield high-quality vital event data to improve characterization of detailed mortality patterns of infants in low- and middle-income countries, especially in the early neonatal period where mortality risk is highest and changes rapidly.
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Affiliation(s)
- Daniel J. Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Seema Subedi
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Andrea Verhulst
- Population Studies Center, University of Pennsylvania, Philadelphia, PA USA
| | - Michel Guillot
- Population Studies Center, University of Pennsylvania, Philadelphia, PA USA
- Department of Sociology, University of Pennsylvania, Philadelphia, PA USA
| | - Linda S. Adair
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC USA
| | - Aluísio J. D. Barros
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Bernard Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | | | | | - Pedro C. Hallal
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Jean H. Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Lieven Huybregts
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, Washington, DC USA
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Simon Kariuki
- Kenya Medical Research Institute/Centre for Global Health Research, Kisumu, Kenya
| | | | - Carl Lachat
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Alicia Matijasevich
- Department of Preventive Medicine, Faculty of Medicine FMUSP, University of São Paulo, São Paulo, Brazil
| | - Peter D. McElroy
- Malaria Branch, Centers for Disease Control and Prevention, Atlanta, GA USA
| | - Ana Maria B. Menezes
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Luke C. Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Tita Lorna L. Perez
- USC-Office of Population Studies Foundation, University of San Carlos, Cebu City, Philippines
| | | | | | - Iná S. Santos
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Feiko O. ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, UK
| | | | - James M. Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC USA
| | - Lee S. F. Wu
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
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Gernand AD, Gallagher K, Bhandari N, Kolsteren P, Lee AC, Shafiq Y, Taneja S, Tielsch JM, Abate FW, Baye E, Berhane Y, Chowdhury R, Dailey-Chwalibóg T, de Kok B, Dhabhai N, Jehan F, Kang Y, Katz J, Khatry S, Lachat C, Mazumder S, Muhammad A, Nisar MI, Sharma S, Martin LA, Upadhyay RP, Christian P. Harmonization of maternal balanced energy-protein supplementation studies for individual participant data (IPD) meta-analyses - finding and creating similarities in variables and data collection. BMC Pregnancy Childbirth 2023; 23:107. [PMID: 36774497 PMCID: PMC9919738 DOI: 10.1186/s12884-023-05366-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 01/09/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND Public health and clinical recommendations are established from systematic reviews and retrospective meta-analyses combining effect sizes, traditionally, from aggregate data and more recently, using individual participant data (IPD) of published studies. However, trials often have outcomes and other meta-data that are not defined and collected in a standardized way, making meta-analysis problematic. IPD meta-analysis can only partially fix the limitations of traditional, retrospective, aggregate meta-analysis; prospective meta-analysis further reduces the problems. METHODS We developed an initiative including seven clinical intervention studies of balanced energy-protein (BEP) supplementation during pregnancy and/or lactation that are being conducted (or recently concluded) in Burkina Faso, Ethiopia, India, Nepal, and Pakistan to test the effect of BEP on infant and maternal outcomes. These studies were commissioned after an expert consultation that designed recommendations for a BEP product for use among pregnant and lactating women in low- and middle-income countries. The initiative goal is to harmonize variables across studies to facilitate IPD meta-analyses on closely aligned data, commonly called prospective meta-analysis. Our objective here is to describe the process of harmonizing variable definitions and prioritizing research questions. A two-day workshop of investigators, content experts, and advisors was held in February 2020 and harmonization activities continued thereafter. Efforts included a range of activities from examining protocols and data collection plans to discussing best practices within field constraints. Prior to harmonization, there were many similar outcomes and variables across studies, such as newborn anthropometry, gestational age, and stillbirth, however, definitions and protocols differed. As well, some measurements were being conducted in several but not all studies, such as food insecurity. Through the harmonization process, we came to consensus on important shared variables, particularly outcomes, added new measurements, and improved protocols across studies. DISCUSSION We have fostered extensive communication between investigators from different studies, and importantly, created a large set of harmonized variable definitions within a prospective meta-analysis framework. We expect this initiative will improve reporting within each study in addition to providing opportunities for a series of IPD meta-analyses.
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Affiliation(s)
- Alison D Gernand
- Department of Nutritional Sciences, The Pennsylvania State University, 110 Chandlee Lab, University Park, PA, 16802, USA.
| | - Kelly Gallagher
- Department of Nutritional Sciences, The Pennsylvania State University, 110 Chandlee Lab, University Park, PA, 16802, USA
- Ross and Carol Nese College of Nursing, The Pennsylvania State University, University Park, PA, USA
| | - Nita Bhandari
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - Patrick Kolsteren
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Anne Cc Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | | | - Sunita Taneja
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - James M Tielsch
- Department of Global Health, The George Washington University Milken Institute School of Public Health, Washington, D.C, USA
| | - Firehiwot Workneh Abate
- Department of Epidemiology and Biostatistics, Addis Continental Institute of Public Health, Addis Adaba, Ethiopia
| | - Estifanos Baye
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Yemane Berhane
- Department of Epidemiology and Biostatistics, Addis Continental Institute of Public Health, Addis Adaba, Ethiopia
| | - Ranadip Chowdhury
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - Trenton Dailey-Chwalibóg
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Brenda de Kok
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Neeta Dhabhai
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - Fyezah Jehan
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Yunhee Kang
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Subarna Khatry
- Nepal Nutrition Intervention Project-Sarlahi, Lalitpur, Nepal
| | - Carl Lachat
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Sarmila Mazumder
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | | | - Muhammad Imran Nisar
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Sitanshi Sharma
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - Leigh A Martin
- Department of Nutritional Sciences, The Pennsylvania State University, 110 Chandlee Lab, University Park, PA, 16802, USA
| | - Ravi Prakash Upadhyay
- Centre for Health Research and Development Society for Applied Studies, New Delhi, India
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Smith ER, Oakley E, Grandner GW, Rukundo G, Farooq F, Ferguson K, Baumann S, Adams Waldorf KM, Afshar Y, Ahlberg M, Ahmadzia H, Akelo V, Aldrovandi G, Bevilacqua E, Bracero N, Brandt JS, Broutet N, Carrillo J, Conry J, Cosmi E, Crispi F, Crovetto F, Del Mar Gil M, Delgado-López C, Divakar H, Driscoll AJ, Favre G, Fernandez Buhigas I, Flaherman V, Gale C, Godwin CL, Gottlieb S, Gratacós E, He S, Hernandez O, Jones S, Joshi S, Kalafat E, Khagayi S, Knight M, Kotloff KL, Lanzone A, Laurita Longo V, Le Doare K, Lees C, Litman E, Lokken EM, Madhi SA, Magee LA, Martinez-Portilla RJ, Metz TD, Miller ES, Money D, Moungmaithong S, Mullins E, Nachega JB, Nunes MC, Onyango D, Panchaud A, Poon LC, Raiten D, Regan L, Sahota D, Sakowicz A, Sanin-Blair J, Stephansson O, Temmerman M, Thorson A, Thwin SS, Tippett Barr BA, Tolosa JE, Tug N, Valencia-Prado M, Visentin S, von Dadelszen P, Whitehead C, Wood M, Yang H, Zavala R, Tielsch JM. Clinical risk factors of adverse outcomes among women with COVID-19 in the pregnancy and postpartum period: a sequential, prospective meta-analysis. Am J Obstet Gynecol 2023; 228:161-177. [PMID: 36027953 PMCID: PMC9398561 DOI: 10.1016/j.ajog.2022.08.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/04/2022] [Accepted: 08/07/2022] [Indexed: 01/28/2023]
Abstract
OBJECTIVE This sequential, prospective meta-analysis sought to identify risk factors among pregnant and postpartum women with COVID-19 for adverse outcomes related to disease severity, maternal morbidities, neonatal mortality and morbidity, and adverse birth outcomes. DATA SOURCES We prospectively invited study investigators to join the sequential, prospective meta-analysis via professional research networks beginning in March 2020. STUDY ELIGIBILITY CRITERIA Eligible studies included those recruiting at least 25 consecutive cases of COVID-19 in pregnancy within a defined catchment area. METHODS We included individual patient data from 21 participating studies. Data quality was assessed, and harmonized variables for risk factors and outcomes were constructed. Duplicate cases were removed. Pooled estimates for the absolute and relative risk of adverse outcomes comparing those with and without each risk factor were generated using a 2-stage meta-analysis. RESULTS We collected data from 33 countries and territories, including 21,977 cases of SARS-CoV-2 infection in pregnancy or postpartum. We found that women with comorbidities (preexisting diabetes mellitus, hypertension, cardiovascular disease) vs those without were at higher risk for COVID-19 severity and adverse pregnancy outcomes (fetal death, preterm birth, low birthweight). Participants with COVID-19 and HIV were 1.74 times (95% confidence interval, 1.12-2.71) more likely to be admitted to the intensive care unit. Pregnant women who were underweight before pregnancy were at higher risk of intensive care unit admission (relative risk, 5.53; 95% confidence interval, 2.27-13.44), ventilation (relative risk, 9.36; 95% confidence interval, 3.87-22.63), and pregnancy-related death (relative risk, 14.10; 95% confidence interval, 2.83-70.36). Prepregnancy obesity was also a risk factor for severe COVID-19 outcomes including intensive care unit admission (relative risk, 1.81; 95% confidence interval, 1.26-2.60), ventilation (relative risk, 2.05; 95% confidence interval, 1.20-3.51), any critical care (relative risk, 1.89; 95% confidence interval, 1.28-2.77), and pneumonia (relative risk, 1.66; 95% confidence interval, 1.18-2.33). Anemic pregnant women with COVID-19 also had increased risk of intensive care unit admission (relative risk, 1.63; 95% confidence interval, 1.25-2.11) and death (relative risk, 2.36; 95% confidence interval, 1.15-4.81). CONCLUSION We found that pregnant women with comorbidities including diabetes mellitus, hypertension, and cardiovascular disease were at increased risk for severe COVID-19-related outcomes, maternal morbidities, and adverse birth outcomes. We also identified several less commonly known risk factors, including HIV infection, prepregnancy underweight, and anemia. Although pregnant women are already considered a high-risk population, special priority for prevention and treatment should be given to pregnant women with these additional risk factors.
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Affiliation(s)
- Emily R Smith
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC.
| | - Erin Oakley
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Gargi Wable Grandner
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Gordon Rukundo
- PeriCOVID (PREPARE)-Uganda Team, Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Fouzia Farooq
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Kacey Ferguson
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Sasha Baumann
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Kristina Maria Adams Waldorf
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA; Department of Global Health, University of Washington, Seattle, WA
| | - Yalda Afshar
- Division of Maternal-Fetal Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Mia Ahlberg
- Division of Division of Clinical Epidemiology, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Homa Ahmadzia
- Division of Maternal-Fetal Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Victor Akelo
- Centers for Disease Control and Prevention, Kisumu, Kenya
| | - Grace Aldrovandi
- Department of Pediatrics, University of California, Los Angeles, Los Angeles, CA
| | - Elisa Bevilacqua
- Department of Women and Child Health, Women Health Area, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Nabal Bracero
- Department of Obstetrics and Gynecology, University of Puerto Rico School of Medicine, San Juan, PR; Puerto Rico Obstetrics and Gynecology (PROGyn)
| | - Justin S Brandt
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Natalie Broutet
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Jorge Carrillo
- Departamento de Obstetricia y Ginecologia, Clinica Alemana de Santiago, Facultad de Medicina Clinica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Jeanne Conry
- International Federation of Gynecology and Obstetrics, London, United Kingdom
| | - Erich Cosmi
- Department of Women's and Children's Health, Obstetrics and Gynecology Clinic, University of Padua, Padua, Italy
| | - Fatima Crispi
- BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu Barcelona and Hospital Clínic de Barcelona, Universitat de Barcelona, and Center for Biomedical Research on Rare Diseases, Barcelona, Spain
| | - Francesca Crovetto
- BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu Barcelona and Hospital Clínic de Barcelona, Universitat de Barcelona, and Center for Biomedical Research on Rare Diseases, Barcelona, Spain
| | - Maria Del Mar Gil
- Department of Obstetrics and Gynecology, Hospital Universitario de Torrejón, Madrid, Spain; School of Medicine, Universidad Francisco de Vitoria, Madrid, Spain
| | - Camille Delgado-López
- Surveillance for Emerging Threats to Mothers and Babies, Puerto Rico Department of Health, San Juan, PR
| | - Hema Divakar
- Asian Research & Training Institute for Skill Transfer, Bengaluru, India
| | - Amanda J Driscoll
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD
| | - Guillaume Favre
- Materno-fetal and Obstetrics Research Unit, Département Femme-Mère-Enfant, Lausanne University Hospital, Lausanne, Switzerland
| | - Irene Fernandez Buhigas
- Department of Obstetrics and Gynecology, Hospital Universitario de Torrejón, Madrid, Spain; School of Medicine, Universidad Francisco de Vitoria, Madrid, Spain
| | - Valerie Flaherman
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA
| | - Christopher Gale
- Neonatal Medicine, School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Christine L Godwin
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Sami Gottlieb
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Eduard Gratacós
- BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu Barcelona and Hospital Clínic de Barcelona, Universitat de Barcelona, and Center for Biomedical Research on Rare Diseases, Barcelona, Spain
| | - Siran He
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Olivia Hernandez
- Gynecology and Obstetrics, Félix Bulnes Hospital and RedSalud Clinic, Santiago, Chile
| | - Stephanie Jones
- South African Medical Research Council, Vaccines and Infectious Diseases Analytics Research Unit and Department of Science and Technology/National Research Foundation, South African Research Chair Initiative in Vaccine Preventable Diseases, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sheetal Joshi
- Asian Research & Training Institute for Skill Transfer, Bengaluru, India
| | - Erkan Kalafat
- Department of Obstetrics and Gynecology, School of Medicine, Koç University, Istanbul, Turkey
| | - Sammy Khagayi
- Kenya Medical Research Institute-Centre for Global Health Research, Kisumu, Kenya
| | - Marian Knight
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Karen L Kotloff
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD
| | - Antonio Lanzone
- Department of Women and Child Health, Women Health Area, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy; Catholic University of Sacred Heart, Rome, Italy
| | - Valentina Laurita Longo
- Department of Women and Child Health, Women Health Area, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy; Catholic University of Sacred Heart, Rome, Italy
| | - Kirsty Le Doare
- PeriCOVID (PREPARE)-Uganda Team, Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda; Medical Research Council /Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine Uganda Research Unit, Entebbe, Uganda; Paediatric Infectious Disease Research Group, St George's University of London, London, United Kingdom
| | - Christoph Lees
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Ethan Litman
- Division of Maternal-Fetal Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Erica M Lokken
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA; Department of Global Health, University of Washington, Seattle, WA
| | - Shabir A Madhi
- South African Medical Research Council, Vaccines and Infectious Diseases Analytics Research Unit and Department of Science and Technology/National Research Foundation, South African Research Chair Initiative in Vaccine Preventable Diseases, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Laura A Magee
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, United Kingdom; Institute of Women and Children's Health, King's College Hospital, London, United Kingdom
| | | | - Torri D Metz
- Division of Maternal-Fetal Medicine, The University of Utah Health, Salt Lake City, UT
| | - Emily S Miller
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Deborah Money
- Department of Obstetrics and Gynecology, The University of British Columbia, Vancouver, Canada
| | - Sakita Moungmaithong
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Hong Kong
| | - Edward Mullins
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom; George Institute for Global Health, London, United Kingdom
| | - Jean B Nachega
- Department of Epidemiology and Center for Global Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA; Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa; Departments of Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Marta C Nunes
- South African Medical Research Council, Vaccines and Infectious Diseases Analytics Research Unit and Department of Science and Technology/National Research Foundation, South African Research Chair Initiative in Vaccine Preventable Diseases, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Alice Panchaud
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Service of Pharmacy, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Liona C Poon
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Hong Kong
| | - Daniel Raiten
- Pediatric Growth and Nutrition Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| | - Lesley Regan
- International Federation of Gynecology and Obstetrics, Imperial College London, London, United Kingdom
| | - Daljit Sahota
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Hong Kong
| | - Allie Sakowicz
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Jose Sanin-Blair
- Maternal-Fetal Unit, Universidad Pontificia Bolivariana, Medellín, Colombia
| | - Olof Stephansson
- Division of Division of Clinical Epidemiology, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Marleen Temmerman
- Centre of Excellence in Women and Child Health, Aga Khan University, Nairobi, Kenya
| | - Anna Thorson
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Soe Soe Thwin
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Beth A Tippett Barr
- Centers for Disease Control and Prevention, Kisumu, Kenya; Nyanja Health Research Institute, Salima, Malawi
| | - Jorge E Tolosa
- Maternal-Fetal Unit, Universidad Pontificia Bolivariana, Medellín, Colombia; Department of Obstetrics and Gynecology, Maternal Fetal Medicine, Oregon Health & Science University, Portland, OR; Department of Obstetrics and Gynecology, Maternal Fetal Medicine, St. Luke's University Health Network, Bethlehem, PA
| | - Niyazi Tug
- Department of Obstetrics and Gynecology, Sancaktepe Sehit Prof. Dr. Ilhan Varank Training and Research Hospital, Istanbul, Turkey
| | - Miguel Valencia-Prado
- Division of Children with Special Medical Needs, Puerto Rico Department of Health, San Juan, PR
| | - Silvia Visentin
- Department of Women's and Children's Health, Obstetrics and Gynecology Clinic, University of Padua, Padua, Italy
| | - Peter von Dadelszen
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, United Kingdom; Global Health Institute, King's College London, London, United Kingdom
| | - Clare Whitehead
- Department of Maternal Fetal Medicine, University of Melbourne, Royal Women's Hospital, Melbourne, Australia
| | - Mollie Wood
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Huixia Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Rebecca Zavala
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
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Noble C, Mooney C, Makasi R, Ntozini R, Majo FD, Church JA, Tavengwa NV, Prendergast AJ, Humphrey JH, Manges A, Mangwadu G, Maluccio JA, Mbuya MNN, Moulton LH, Stoltzfus RJ, Tielsch JM, Smith LE, Chasokela C, Chigumira A, Heylar W, Hwena P, Kembo G, Mutasa B, Mutasa K, Rambanepasi P, Sauramba V, Van Der Keilen F, Zambezi C, Chidhanguro D, Chigodora D, Chipanga JF, Gerema G, Magara T, Mandava M, Mavhudzi T, Mazhanga C, Muzaradope G, Mwapaura MT, Phiri S, Tengende A, Banda C, Chasekwa B, Chidamba L, Chidawanyika T, Chikwindi E, Chingaona LK, Chiorera CK, Dandadzi A, Govha M, Gumbo H, Gwanzura KT, Kasaru S, Matsika AM, Maunze D, Mazarura E, Mpofu E, Mushonga J, Mushore TE, Muzira T, Nembaware N, Nkiwane S, Nyamwino P, Rukobo SD, Runodamoto T, Seremwe S, Simango P, Tome J, Tsenesa B, Amadu U, Bangira B, Chiveza D, Hove P, Jombe HA, Kujenga D, Madhuyu L, Mandina-Makoni P, Maramba N, Maregere B, Marumani E, Masakadze E, Mazula P, Munyanyi C, Musanhu G, Mushanawani RC, Mutsando S, Nazare F, Nyarambi M, Nzuda W, Sigauke T, Solomon M, Tavengwa T, Biri F, Chafanza M, Chaitezvi C, Chauke T, Chidzomba C, Dadirai T, Fundira C, Gambiza AC, Godzongere T, Kuona M, Mafuratidze T, Mapurisa I, Mashedze T, Moyo N, Musariri C, Mushambadope M, Mutsonziwa TR, Muzondo A, Mwareka R, Nyamupfukudza J, Saidi B, Sakuhwehwe T, Sikalima G, Tembe J, Chekera TE, Chihombe O, Chikombingo M, Chirinda T, Chivizhe A, Hove R, Kufa R, Machikopa TF, Mandaza W, Mandongwe L, Manhiyo F, Manyaga E, Mapuranga P, Matimba FS, Matonhodze P, Mhuri S, Mike J, Ncube B, Nderecha WTS, Noah M, Nyamadzawo C, Penda J, Saidi A, Shonhayi S, Simon C, Tichagwa M, Chamakono R, Chauke A, Gatsi AF, Hwena B, Jawi H, Kaisa B, Kamutanho S, Kaswa T, Kayeruza P, Lunga J, Magogo N, Manyeruke D, Mazani P, Mhuriyengwe F, Mlambo F, Moyo S, Mpofu T, Mugava M, Mukungwa Y, Muroyiwa F, Mushonga E, Nyekete S, Rinashe T, Sibanda K, Chemhuru M, Chikunya J, Chikwavaire VF, Chikwiriro C, Chimusoro A, Chinyama J, Gwinji G, Hoko-Sibanda N, Kandawasvika R, Madzimure T, Maponga B, Mapuranga A, Marembo J, Matsunge L, Maunga S, Muchekeza M, Muti M, Nyamana M, Azhuda E, Bhoroma U, Biriyadi A, Chafota E, Chakwizira A, Chamhamiwa A, Champion T, Chazuza S, Chikwira B, Chingozho C, Chitabwa A, Dhurumba A, Furidzirai A, Gandanga A, Gukuta C, Macheche B, Marihwi B, Masike B, Mutangandura E, Mutodza B, Mutsindikwa A, Mwale A, Ndhlovu R, Nduna N, Nyamandi C, Ruvata E, Sithole B, Urayai R, Vengesa B, Zorounye M, Bamule M, Bande M, Chahuruva K, Chidumba L, Chigove Z, Chiguri K, Chikuni S, Chikwanda R, Chimbi T, Chingozho M, Chinhamo O, Chinokuramba R, Chinyoka C, Chipenzi X, Chipute R, Chiribhani G, Chitsinga M, Chiwanga C, Chiza A, Chombe F, Denhere M, Dhamba E, Dhamba M, Dube J, Dzimbanhete F, Dzingai G, Fusira S, Gonese M, Gota J, Gumure K, Gwaidza P, Gwangwava M, Gwara W, Gwauya M, Gwiba M, Hamauswa J, Hlasera S, Hlukani E, Hotera J, Jakwa L, Jangara G, Janyure M, Jari C, Juru D, Kapuma T, Konzai P, Mabhodha M, Maburutse S, Macheka C, Machigaya T, Machingauta F, Machokoto E, Madhumba E, Madziise L, Madziva C, Madzivire M, Mafukise M, Maganga M, Maganga S, Mageja E, Mahanya M, Mahaso E, Mahleka S, Makanhiwa P, Makarudze M, Makeche C, Makopa N, Makumbe R, Mandire M, Mandiyanike E, Mangena E, Mangiro F, Mangwadu A, Mangwengwe T, Manhidza J, Manhovo F, Manono I, Mapako S, Mapfumo E, Mapfumo T, Mapuka J, Masama D, Masenge G, Mashasha M, Mashivire V, Matunhu M, Mavhoro P, Mawuka G, Mazango I, Mazhata N, Mazuva D, Mazuva M, Mbinda F, Mborera J, Mfiri U, Mhandu F, Mhike C, Mhike T, Mhuka A, Midzi J, Moyo S, Mpundu M, Msindo NM, Msindo D, Mtisi C, Muchemwa G, Mujere N, Mukaro E, Muketiwa K, Mungoi S, Munzava E, Muoki R, Mupura H, Murerwa E, Murisi C, Muroyiwa L, Muruvi M, Musemwa N, Mushure C, Mutero J, Mutero P, Mutumbu P, Mutya C, Muzanango L, Muzembi M, Muzungunye D, Mwazha V, Ncube T, Ndava T, Ndlovu N, Nehowa P, Ngara D, Nguruve L, Nhigo P, Nkiwane S, Nyanyai L, Nzombe J, Office E, Paul B, Pavari S, Ranganai S, Ratisai S, Rugara M, Rusere P, Sakala J, Sango P, Shava S, Shekede M, Shizha C, Sibanda T, Tapambwa N, Tembo J, Tinago N, Tinago V, Toindepi T, Tovigepi J, Tuhwe M, Tumbo K, Zaranyika T, Zaru T, Zimidzi K, Zindo M, Zindonda M, Zinhumwe N, Zishiri L, Ziyambi E, Zvinowanda J, Bepete E, Chiwira C, Chuma N, Fari A, Gavi S, Gunha V, Hakunandava F, Huku C, Hungwe G, Maduke G, Manyewe E, Mapfumo T, Marufu I, Mashiri C, Mazenge S, Mbinda E, Mhuri A, Muguti C, Munemo L, Musindo L, Ngada L, Nyembe D, Taruvinga R, Tobaiwa E, Banda S, Chaipa J, Chakaza P, Chandigere M, Changunduma A, Chibi C, Chidyagwai O, Chidza E, Chigatse N, Chikoto L, Chingware V, Chinhamo J, Chinhoro M, Chiripamberi A, Chitavati E, Chitiga R, Chivanga N, Chivese T, Chizema F, Dera S, Dhliwayo A, Dhononga P, Dimingo E, Dziyani M, Fambi T, Gambagamba L, Gandiyari S, Gomo C, Gore S, Gundani J, Gundani R, Gwarima L, Gwaringa C, Gwenya S, Hamilton R, Hlabano A, Hofisi E, Hofisi F, Hungwe S, Hwacha S, Hwara A, Jogwe R, Kanikani A, Kuchicha L, Kutsira M, Kuziyamisa K, Kuziyamisa M, Kwangware B, Lozani P, Mabuto J, Mabuto V, Mabvurwa L, Machacha R, Machaya C, Madembo R, Madya S, Madzingira S, Mafa L, Mafuta F, Mafuta J, Mahara A, Mahonye S, Maisva A, Makara A, Makover M, Mambongo E, Mambure M, Mandizvidza E, Mangena G, Manjengwa E, Manomano J, Mapfumo M, Mapfurire A, Maphosa L, Mapundo J, Mare D, Marecha F, Marecha S, Mashiri C, Masiya M, Masuku T, Masvimbo P, Matambo S, Matarise G, Matinanga L, Matizanadzo J, Maunganidze M, Mawere B, Mawire C, Mazvanya Y, Mbasera M, Mbono M, Mhakayakora C, Mhlanga N, Mhosva B, Moyo N, Moyo O, Moyo R, Mpakami C, Mpedzisi R, Mpofu E, Mpofu E, Mtetwa M, Muchakachi J, Mudadada T, Mudzingwa K, Mugwira M, Mukarati T, Munana A, Munazo J, Munyeki O, Mupfeka P, Murangandi G, Muranganwa M, Murenjekwa J, Muringo N, Mushaninga T, Mutaja F, Mutanha D, Mutemeri P, Mutero B, Muteya E, Muvembi S, Muzenda T, Mwenjota A, Ncube S, Ndabambi T, Ndava N, Ndlovu E, Nene E, Ngazimbi E, Ngwalati A, Nyama T, Nzembe A, Pabwaungana E, Phiri S, Pukuta R, Rambanapasi M, Rera T, Samanga V, Shirichena S, Shoko C, Shonhe M, Shuro C, Sibanda J, Sibangani E, Sibangani N, Sibindi N, Sitotombe M, Siwawa P, Tagwirei M, Taruvinga P, Tavagwisa A, Tete E, Tete Y, Thandiwe E, Tibugari A, Timothy S, Tongogara R, Tshuma L, Tsikira M, Tumba C, Watinaye R, Zhiradzango E, Zimunya E, Zinengwa L, Ziupfu M, Ziyambe J. Antenatal and delivery practices and neonatal mortality amongst women with institutional and non-institutional deliveries in rural Zimbabwe: observational data from a cluster randomized trial. BMC Pregnancy Childbirth 2022; 22:981. [PMID: 36585673 PMCID: PMC9805263 DOI: 10.1186/s12884-022-05282-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 12/05/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Despite achieving relatively high rates of antenatal care, institutional delivery, and HIV antiretroviral therapy for women during pregnancy, neonatal mortality has remained stubbornly high in Zimbabwe. Clearer understanding of causal pathways is required to inform effective interventions. METHODS This study was a secondary analysis of data from the Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial, a cluster-randomized community-based trial among pregnant women and their infants, to examine care during institutional and non-institutional deliveries in rural Zimbabwe and associated birth outcomes. RESULTS Among 4423 pregnant women, 529 (11.9%) delivered outside a health institution; hygiene practices were poorer and interventions to minimise neonatal hypothermia less commonly utilised for these deliveries compared to institutional deliveries. Among 3441 infants born in institutions, 592 (17.2%) were preterm (< 37 weeks gestation), while 175/462 (37.9%) infants born outside health institutions were preterm (RR: 2.20 (1.92, 2.53). Similarly, rates of stillbirth [1.2% compared to 3.0% (RR:2.38, 1.36, 4.15)] and neonatal mortality [2.4% compared to 4.8% (RR: 2.01 1.31, 3.10)] were higher among infants born outside institutions. Among mothers delivering at home who reported their reason for having a home delivery, 221/293 (75%) reported that precipitous labor was the primary reason for not having an institutional delivery while 32 (11%), 34 (12%), and 9 (3%), respectively, reported distance to the clinic, financial constraints, and religious/personal preference. CONCLUSIONS Preterm birth is common among all infants in rural Zimbabwe, and extremely high among infants born outside health institutions. Our findings indicate that premature onset of labor, rather than maternal choice, may be the reason for many non-institutional deliveries in low-resource settings, initiating a cascade of events resulting in a two-fold higher risk of stillbirth and neonatal mortality amongst children born outside health institutions. Interventions for primary prevention of preterm delivery will be crucial in reducing neonatal mortality in Zimbabwe. TRIAL REGISTRATION The trial is registered with ClinicalTrials.gov, number NCT01824940.
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Affiliation(s)
- Christie Noble
- grid.4868.20000 0001 2171 1133Blizard Institute, Queen Mary University of London, London, UK
| | - Ciaran Mooney
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Beechill House, 42 Beechill Rd, Belfast, BT8 7RL UK
| | - Rachel Makasi
- grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Robert Ntozini
- grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Florence D. Majo
- grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - James A. Church
- grid.4868.20000 0001 2171 1133Blizard Institute, Queen Mary University of London, London, UK ,grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Naume V. Tavengwa
- grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Andrew J. Prendergast
- grid.4868.20000 0001 2171 1133Blizard Institute, Queen Mary University of London, London, UK ,grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe ,grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Jean H. Humphrey
- grid.493148.3Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe ,grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
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9
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Subedi S, Hazel EA, Mohan D, Zeger S, Mullany LC, Tielsch JM, Khatry SK, LeClerq SC, Black RE, Katz J. Prevalence and predictors of spontaneous preterm births in Nepal: findings from a prospective, population-based pregnancy cohort in rural Nepal-a secondary data analysis. BMJ Open 2022; 12:e066934. [PMID: 36456014 PMCID: PMC9716942 DOI: 10.1136/bmjopen-2022-066934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE Preterm birth can have short-term and long-term complications for a child. Socioeconomic factors and pregnancy-related morbidities may be important to predict and prevent preterm births in low-resource settings. The objective of our study was to find prevalence and predictors of spontaneous preterm birth in rural Nepal. DESIGN This is a secondary observational analysis of trial data (registration number NCT01177111). SETTING Rural Sarlahi district, Nepal. PARTICIPANTS 40 119 pregnant women enrolled from 9 September 2010 to 16 January 2017. OUTCOME MEASURES The outcome variable is spontaneous preterm birth. Generalized Estimating Equations Poisson regression with robust variance was fitted to present effect estimates as risk ratios. RESULT The prevalence of spontaneous preterm birth was 14.5% (0.5% non-spontaneous). Characteristics not varying in pregnancy associated with increased risk of preterm birth were maternal age less than 18 years (adjusted risk ratio=1.13, 95% CI: 1.02 to 1.26); being Muslim (1.53, 1.16 to 2.01); first pregnancy (1.15, 1.04 to 1.28); multiple births (4.91, 4.20 to 5.75) and male child (1.10, 1.02 to 1.17). Those associated with decreased risk were maternal education >5 years (0.81, 0.73 to 0.90); maternal height ≥150 cm (0.89, 0.81 to 0.98) and being from wealthier families (0.83, 0.74 to 0.93). Pregnancy-related morbidities associated with increased risk of preterm birth were vaginal bleeding (1.53, 1.08 to 2.18); swelling (1.37, 1.17 to 1.60); high systolic blood pressure (BP) (1.47, 1.08 to 2.01) and high diastolic BP (1.41, 1.17 to 1.70) in the third trimester. Those associated with decreased risk were respiratory problem in the third trimester (0.86, 0.79 to 0.94); having poor appetite, nausea and vomiting in the second trimester (0.86, 0.80 to 0.92) and third trimester (0.86, 0.79 to 0.94); and higher weight gain from second to third trimester (0.89, 0.87 to 0.90). CONCLUSION The prevalence of preterm birth is high in rural Nepal. Interventions that increase maternal education may play a role. Monitoring morbidities during antenatal care to intervene to reduce them through an effective health system may help reduce preterm birth.
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Affiliation(s)
- Seema Subedi
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project Sarlahi, Kathmandu, Nepal
| | - Elizabeth A Hazel
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Diwakar Mohan
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Scott Zeger
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Department of Global Health, George Washington University School of Public Health and Health Services, Washington, District of Columbia, USA
| | | | - Steven C LeClerq
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project Sarlahi, Kathmandu, Nepal
| | - Robert E Black
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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10
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Saya AR, Katz J, Khatry SK, Tielsch JM, LeClerq SC, Mullany LC. Causes of neonatal mortality using verbal autopsies in rural Southern Nepal, 2010-2017. PLOS Glob Public Health 2022; 2:e0001072. [PMID: 36962665 PMCID: PMC10021801 DOI: 10.1371/journal.pgph.0001072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/24/2022] [Indexed: 11/19/2022]
Abstract
The burden of neonatal mortality remains high worldwide, particularly in South Asia. Verbal Autopsy is a method used to identify cause of death (COD) where vital registration capabilities are lacking. This study examines the causes of neonatal mortality in a large study population in rural Southern Nepal. The data used is from a larger cluster-randomized community-based trial. The study includes 984 neonatal deaths with complete verbal autopsy information which occurred between 2010 and 2017. The InterVA-5 software was used to identify COD. COD included severe infection (sepsis, pneumonia, meningitis/encephalitis), intrapartum related events (identified as birth asphyxia), congenital malformations, and other. The neonatal mortality rate was 31.2 neonatal deaths per 1000 live births. The causes of neonatal mortality were identified as prematurity (40%), intrapartum related events (35%), severe infection (19%), congenital abnormalities (4%), and other (2%). A high proportion, 42.5% of neonatal deaths occurred in the first 24 hours after birth. Over half (56.4%) of deaths occurred at home. This large prospective study identifies population level neonatal causes of death in rural Southern Nepal, which can contribute to national and regional COD estimates. Interventions to decrease neonatal mortality should focus on preventative measures and ensuring the delivery of high risk infants at a healthcare facility in the presence of a skilled birth attendant.
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Affiliation(s)
- Ayesha R. Saya
- Neonatal-Perinatal Medicine, Johns Hopkins University, Baltimore, MD, United States of America
| | - Joanne Katz
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Subarna K. Khatry
- Nepal Nutrition Intervention Project-Sarlahi, Lalitpur, Bagmati, Nepal
| | - James M. Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, United States of America
| | - Steven C. LeClerq
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
- Nepal Nutrition Intervention Project-Sarlahi, Lalitpur, Bagmati, Nepal
| | - Luke C. Mullany
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
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11
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Hazel EA, Mohan D, Zeger S, Mullany LC, Tielsch JM, Khatry SK, Subedi S, LeClerq SC, Black RE, Katz J. Demographic, socio-economic, obstetric, and behavioral factors associated with small-and large-for-gestational-age from a prospective, population-based pregnancy cohort in rural Nepal: a secondary data analysis. BMC Pregnancy Childbirth 2022; 22:652. [PMID: 35986258 PMCID: PMC9389767 DOI: 10.1186/s12884-022-04974-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/09/2022] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND In South Asia, a third of babies are born small-for-gestational age (SGA). The risk factors are well described in the literature, but many studies are in high-and-middle income countries or measure SGA on facility births only. There are fewer studies that describe the prevalence of risk factors for large-for-gestational age (LGA) in low-income countries. We aim to describe the factors associated with SGA and LGA in a population-based cohort of pregnant women in rural Nepal. METHODS This is a secondary data analysis of community-based trial on neonatal oil massage (22,545 women contributing 39,479 pregnancies). Demographic, socio-economic status (SES), medical/obstetric history, and timing of last menstruation were collected at enrollment. Vital signs, illness symptoms, and antenatal care (ANC) attendance were collected throughout the pregnancy and neonatal weight was measured for live births. We conducted multivariate analysis using multinomial, multilevel logistic regression, reporting the odds ratio (OR) with 95% confidence intervals (CIs). Outcomes were SGA, LGA compared to appropriate-for-gestational age (AGA) and were multiply imputed using birthweight recalibrated to time at delivery. RESULTS SGA was associated with nulligravida (OR: 2.12 95% CI: 1.93-2.34), gravida/nulliparous (OR: 1.86, 95% CI: 1.26-2.74), interpregnancy intervals less than 18 months (OR: 1.16, 95% CI: 1.07-1.27), and poor appetite/vomiting in the second trimester, (OR: 1.27, 95% CI: 1.19-1.35). Greater wealth (OR: 0.78, 95% CI: 0.69-0.88), swelling of hands/face in the third trimester (OR: 0.81, 95% CI: 0.69-0.94) parity greater than five (OR: 0.77, 95% CI: 0.65-0.92), male fetal sex (OR: 0.91, 95% CI: 0.86-0.98), and increased weight gain (OR: 0.93 per weight kilogram difference between 2nd and 3rd trimester, 95% CI: 0.92-0.95) were protective for SGA. Four or more ANC visits (OR: 0.53, 95% CI: 0.41-0.68) and respiratory symptoms in the third trimester (OR: 0.67, 95% CI: 0.54-0.84) were negatively associated with LGA, and maternal age < 18 years (OR: 1.39, 95% CI: 1.03-1.87) and respiratory symptoms in the second trimester (OR: 1.27, 95% CI: 1.07-1.51) were positively associated with LGA. CONCLUSIONS Our findings are in line with known risk factors for SGA. Because the prevalence and mortality risk of LGA babies is low in this population, it is likely LGA status does not indicate underlaying illness. Improved and equitable access to high quality antenatal care, monitoring for appropriate gestational weight gain and increased monitoring of women with high-risk pregnancies may reduce prevalence and improve outcomes of SGA babies. TRIAL REGISTRATION The study used in this secondary data analysis was registered at Clinicaltrials.gov NCT01177111.
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Affiliation(s)
- Elizabeth A. Hazel
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Diwakar Mohan
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Scott Zeger
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Luke C. Mullany
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - James M. Tielsch
- grid.21107.350000 0001 2171 9311George Washington University Milken Institute School of Public Health, Washington, DC USA
| | - Subarna K. Khatry
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA ,Nepal Nutrition Intervention Project-Sarlahi, Sarlahi, Nepal
| | - Seema Subedi
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Steven C. LeClerq
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Robert E. Black
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
| | - Joanne Katz
- grid.21107.350000 0001 2171 9311Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St. Room W5504, Baltimore, MD 21205 USA
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12
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Hazel EA, Mullany LC, Zeger SL, Mohan D, Subedi S, Tielsch JM, Khatry SK, Katz J. Development of an imputation model to recalibrate birth weights measured in the early neonatal period to time at delivery and assessment of its impact on size-for-gestational age and low birthweight prevalence estimates: a secondary analysis of a pregnancy cohort in rural Nepal. BMJ Open 2022; 12:e060105. [PMID: 35820766 PMCID: PMC9277385 DOI: 10.1136/bmjopen-2021-060105] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES In low-income countries, birth weights for home deliveries are often measured at the nadir when babies may lose up of 10% of their birth weight, biasing estimates of small-for-gestational age (SGA) and low birth weight (LBW). We aimed to develop an imputation model that predicts the 'true' birth weight at time of delivery. DESIGN We developed and applied a model that recalibrates weights measured in the early neonatal period to time=0 at delivery and uses those recalibrated birth weights to impute missing birth weights. SETTING This is a secondary analysis of pregnancy cohort data from two studies in Sarlahi district, Nepal. PARTICIPANTS The participants are 457 babies with daily weights measured in the first 10 days of life from a subsample of a larger clinical trial on chlorhexidine (CHX) neonatal skin cleansing and 31 116 babies followed through the neonatal period to test the impact of neonatal massage oil type (Nepal Oil Massage Study (NOMS)). OUTCOME MEASURES We developed an empirical Bayes model of early neonatal weight change using CHX trial longitudinal data and applied it to the NOMS dataset to recalibrate and then impute birth weight at delivery. The outcomes are size-for-gestational age and LBW. RESULTS When using the imputed birth weights, the proportion of SGA is reduced from 49% (95% CI: 48% to 49%) to 44% (95% CI: 43% to 44%). Low birth weight is reduced from 30% (95% CI: 30% to 31%) to 27% (95% CI: 26% to 27%). The proportion of babies born large-for-gestational age increased from 4% (95% CI: 4% to 4%) to 5% (95% CI: 5% to 5%). CONCLUSIONS Using weights measured around the nadir overestimates the prevalence of SGA and LBW. Studies in low-income settings with high levels of home births should consider a similar recalibration and imputation model to generate more accurate population estimates of small and vulnerable newborns.
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Affiliation(s)
- Elizabeth A Hazel
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Luke C Mullany
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Scott L Zeger
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Diwakar Mohan
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Seema Subedi
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Global Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia, USA
| | | | - Joanne Katz
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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13
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Lama TP, Khatry SK, Isanaka S, Moore K, Jones L, Bedford J, Katz J, de Pee S, LeClerq SC, Tielsch JM. Acceptability of 11 fortified balanced energy-protein supplements for pregnant women in Nepal. Matern Child Nutr 2022; 18:e13336. [PMID: 35263004 PMCID: PMC9218317 DOI: 10.1111/mcn.13336] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 06/01/2023]
Abstract
Evidence suggests that multiple micronutrient and balanced energy protein (BEP) supplementation during pregnancy can decrease the risk of stillbirth and small-for-gestational-age births and increase birth weight. We conducted a mixed-methods formative research study to identify the most acceptable among a range of 11 candidates fortified BEP supplements for use in pregnancy and lactation in a rural district in Nepal. Forty pregnant women aged 15-40 years participated in a test meal tasting of 11 different sweet and savoury candidate BEP supplements. Each participant rated the products on organoleptic properties using a 7-point hedonic scale (1 = Dislike it very much to 7 = Like it very much), ranked her 'top 3' most liked supplements, and subsequently discussed each product with peers in focus group discussions (FGDs). Five supplements (sweet lipid-based nutrient supplement (LNS), savoury LNS, sweet vanilla biscuits, vanilla instant drinks and seasoned pillows) achieved the maximum overall median hedonic score of 7, with sweet LNS and seasoned pillows ranking as the top 2. This was consistent with the assessments in FGDs. Women in the FGDs expressed dislike of the smell and taste of the cocoa drink, savoury masala bar, sweet mango bar and savoury curry biscuit, which was consistent with the hedonic scale scores. This study provides valuable insights into our understanding of women's acceptance of different BEP supplements during pregnancy in rural Nepal and has helped identify the two most accepted BEP supplements to be used in a two-month home trial to assess utilisation and compliance in this setting.
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Affiliation(s)
- Tsering P. Lama
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Subarna K. Khatry
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - Sheila Isanaka
- Departments of Nutrition and Global Health and PopulationHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
| | | | | | | | - Joanne Katz
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Saskia de Pee
- Department of Global Health, Milken Institute School of Public HealthGeorge Washington UniversityWashingtonDistrict of ColumbiaUSA
| | - Steven C. LeClerq
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - James M. Tielsch
- Department of Global Health, Milken Institute School of Public HealthGeorge Washington UniversityWashingtonDistrict of ColumbiaUSA
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14
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Smith ER, Oakley E, He S, Zavala R, Ferguson K, Miller L, Grandner GW, Abejirinde IOO, Afshar Y, Ahmadzia H, Aldrovandi G, Akelo V, Tippett Barr BA, Bevilacqua E, Brandt JS, Broutet N, Fernández Buhigas I, Carrillo J, Clifton R, Conry J, Cosmi E, Delgado-López C, Divakar H, Driscoll AJ, Favre G, Flaherman V, Gale C, Gil MM, Godwin C, Gottlieb S, Hernandez Bellolio O, Kara E, Khagayi S, Kim CR, Knight M, Kotloff K, Lanzone A, Le Doare K, Lees C, Litman E, Lokken EM, Laurita Longo V, Magee LA, Martinez-Portilla RJ, McClure E, Metz TD, Money D, Mullins E, Nachega JB, Panchaud A, Playle R, Poon LC, Raiten D, Regan L, Rukundo G, Sanin-Blair J, Temmerman M, Thorson A, Thwin S, Tolosa JE, Townson J, Valencia-Prado M, Visentin S, von Dadelszen P, Adams Waldorf K, Whitehead C, Yang H, Thorlund K, Tielsch JM. Protocol for a sequential, prospective meta-analysis to describe coronavirus disease 2019 (COVID-19) in the pregnancy and postpartum periods. PLoS One 2022; 17:e0270150. [PMID: 35709239 PMCID: PMC9202913 DOI: 10.1371/journal.pone.0270150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/03/2022] [Indexed: 11/19/2022] Open
Abstract
We urgently need answers to basic epidemiological questions regarding SARS-CoV-2 infection in pregnant and postpartum women and its effect on their newborns. While many national registries, health facilities, and research groups are collecting relevant data, we need a collaborative and methodologically rigorous approach to better combine these data and address knowledge gaps, especially those related to rare outcomes. We propose that using a sequential, prospective meta-analysis (PMA) is the best approach to generate data for policy- and practice-oriented guidelines. As the pandemic evolves, additional studies identified retrospectively by the steering committee or through living systematic reviews will be invited to participate in this PMA. Investigators can contribute to the PMA by either submitting individual patient data or running standardized code to generate aggregate data estimates. For the primary analysis, we will pool data using two-stage meta-analysis methods. The meta-analyses will be updated as additional data accrue in each contributing study and as additional studies meet study-specific time or data accrual thresholds for sharing. At the time of publication, investigators of 25 studies, including more than 76,000 pregnancies, in 41 countries had agreed to share data for this analysis. Among the included studies, 12 have a contemporaneous comparison group of pregnancies without COVID-19, and four studies include a comparison group of non-pregnant women of reproductive age with COVID-19. Protocols and updates will be maintained publicly. Results will be shared with key stakeholders, including the World Health Organization (WHO) Maternal, Newborn, Child, and Adolescent Health (MNCAH) Research Working Group. Data contributors will share results with local stakeholders. Scientific publications will be published in open-access journals on an ongoing basis.
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Affiliation(s)
- Emily R. Smith
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Erin Oakley
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Siran He
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Rebecca Zavala
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Kacey Ferguson
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Lior Miller
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | - Gargi Wable Grandner
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
| | | | - Yalda Afshar
- Division of Maternal Fetal Medicine, University of California Los Angeles, Los Angeles, CA, United States of America
| | - Homa Ahmadzia
- Division of Maternal-Fetal Medicine, The George Washington University School of Medicine and Health Sciences, Washington, D.C., United States of America
| | - Grace Aldrovandi
- Department of Pediatrics, University of California Los Angeles, Los Angeles, CA, United States of America
| | - Victor Akelo
- US Centers for Disease Control and Prevention, Kisumu, Kenya
| | | | - Elisa Bevilacqua
- Department of Women and Child Health, Women Health Area, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Justin S. Brandt
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States of America
| | - Natalie Broutet
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Irene Fernández Buhigas
- Department of Obstetrics and Gynecology, Hospital Universitario de Torrejón, Torrejón de Ardoz, Madrid, Spain
- School of Medicine, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Jorge Carrillo
- Departmento de Obstetricia y Ginecologia, Clinica Alemana de Santiago, Facultad de Medicina Clinica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Rebecca Clifton
- Biostatistics Center, The George Washington University, Washington, DC, United States of America
| | - Jeanne Conry
- OBGYN, The International Federation of Gynecology and Obstetrics, London, United Kingdom
| | - Erich Cosmi
- Department of Woman’s and Child’s Health, Obstetrics and Gynecologic Clinic, University of Padua, Padua, Italy
| | - Camille Delgado-López
- Surveillance for Emerging Threats to Mothers and Babies, Puerto Rico Department of Health, San Juan, Puerto Rico
| | - Hema Divakar
- Asian Research and Training Institute for Skill Transfer (ARTIST), Bengaluru, India
| | - Amanda J. Driscoll
- Center for Vaccine Development and Global Health, University of Maryland, School of Medicine, Baltimore, MD, United States of America
| | - Guillaume Favre
- Materno-fetal and Obstetrics Research Unit, Department “Femme-Mère-Enfant”, University Hospital, Lausanne, Switzerland
| | - Valerie Flaherman
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, United States of America
| | - Christopher Gale
- Neonatal Medicine, School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Maria M. Gil
- Department of Obstetrics and Gynecology, Hospital Universitario de Torrejón, Torrejón de Ardoz, Madrid, Spain
- School of Medicine, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Christine Godwin
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
- Global Health Research, FHI 360, Durham, NC, United States of America
| | - Sami Gottlieb
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | | | - Edna Kara
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Sammy Khagayi
- Kenya Medical Research Institute-Center for Global Health Research, Kisumu, Kenya
| | - Caron Rahn Kim
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Marian Knight
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Karen Kotloff
- Center for Vaccine Development and Global Health, University of Maryland, School of Medicine, Baltimore, MD, United States of America
- Department of Metabolism, Digestion, and Reproduction, Imperial College London, of London, United Kingdom
| | - Antonio Lanzone
- Department of Women and Child Health, Women Health Area, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
- Catholic University of Sacred Hearth, Rome, Italy
| | - Kirsty Le Doare
- Medical Research Council /Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Pediatric Infectious Diseases Research Group, St. George’s University of London, of London, United Kingdom
| | - Christoph Lees
- Department of Metabolism, Digestion, and Reproduction, Imperial College London, of London, United Kingdom
| | - Ethan Litman
- Division of Maternal-Fetal Medicine, The George Washington University School of Medicine and Health Sciences, Washington, D.C., United States of America
| | - Erica M. Lokken
- Department of Obstetrics and Gynecology, School of Medicine, University of Washington, Washington, DC, United States of America
- Department of Global Health, School of Public Health, University of Washington, Washington, DC, United States of America
| | | | - Laura A. Magee
- Department of Women and Children’s Health, School of Life Course Sciences, King’s College London, London, United Kingdom
- Institute of Women and Children’s Health, King’s College Hospital, London, United Kingdom
| | - Raigam Jafet Martinez-Portilla
- Clinical Research Division, National Institute of Perinatology, Mexico City, Mexico
- ABC Medical Center, Fetal Surgery Clinic, Mexico City, Mexico
| | - Elizabeth McClure
- Division of Statistics and Epidemiology, RTI International, Chapel Hill, NC, United States of America
| | - Torri D. Metz
- University of Utah Health, Salt Lake City, UT, United States of America
| | - Deborah Money
- Department of Obstetrics and Gynecology, The University of British Columbia, Vancouver, Canada
| | - Edward Mullins
- Department of Metabolism, Digestion, and Reproduction, Imperial College London, of London, United Kingdom
| | - Jean B. Nachega
- Department of Epidemiology and Center for Global Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, United States of America
- Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Departments of Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Alice Panchaud
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
- Service of Pharmacy, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Rebecca Playle
- Center for Trials Research, Cardiff University, Wales, United Kingdom
| | - Liona C. Poon
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Daniel Raiten
- Pediatric Growth and Nutrition Branch, National Institute of Health, Bethesda, MD, United States of America
| | - Lesley Regan
- Federation International Federation Gynaecology & Obstetrics, Imperial College London, London, United Kingdom
| | - Gordon Rukundo
- PeriCovid (PREPARE)–Uganda Team, Makerere University–Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Jose Sanin-Blair
- Maternal Fetal Unit, Universidad Pontificia Bolivariana, RECOGEST Study, Medellín, Colombia
| | - Marleen Temmerman
- Centre of Excellence in Women and Child Health, Aga Khan University, Nairobi, Kenya
| | - Anna Thorson
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Soe Thwin
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Jorge E. Tolosa
- Maternal Fetal Unit, Universidad Pontificia Bolivariana, RECOGEST Study, Medellín, Colombia
- Department of Obstetrics and Gynecology, Maternal Fetal Medicine, Oregon Health and Science University, Portland, OR, United States of America
- St. Luke’s University Health Network, Department of Obstetrics & Gynecology, Maternal Fetal Medicine, Bethlehem, PA, United States of America
| | - Julia Townson
- Center for Trials Research, Cardiff University, Wales, United Kingdom
| | - Miguel Valencia-Prado
- Children with Special Medical Needs Division, Puerto Rico Department of Health, San Juan, Puerto Rico
| | - Silvia Visentin
- Department of Woman’s and Child’s Health, Obstetrics and Gynecologic Clinic, University of Padua, Padua, Italy
| | - Peter von Dadelszen
- Department of Women and Children’s Health, School of Life Course Sciences, King’s College London, London, United Kingdom
- Global Health Institute, King’s College London, London, United Kingdom
| | - Kristina Adams Waldorf
- Department of Obstetrics and Gynecology, School of Medicine, University of Washington, Washington, DC, United States of America
- Department of Global Health, School of Public Health, University of Washington, Washington, DC, United States of America
| | - Clare Whitehead
- Department of Maternal Fetal Medicine, University of Melbourne, Royal Women’s Hospital, Parkville, VIC, Australia
| | - Huixia Yang
- Health Science Center, Peking University, Beijing, China
| | - Kristian Thorlund
- Department of Health Research Methods Evidence and Impact, McMaster University, Hamilton, ON, Canada
| | - James M. Tielsch
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, DC, United States of America
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Subedi S, Katz J, Erchick DJ, Verhulst A, Khatry SK, Mullany LC, Tielsch JM, LeClerq SC, Christian P, West KP, Guillot M. Does higher early neonatal mortality in boys reverse over the neonatal period? A pooled analysis from three trials of Nepal. BMJ Open 2022; 12:e056112. [PMID: 35589346 PMCID: PMC9121405 DOI: 10.1136/bmjopen-2021-056112] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 05/04/2022] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES Neonatal mortality is generally 20% higher in boys than girls due to biological phenomena. Only a few studies have examined more finely categorised age patterns of neonatal mortality by sex, especially in the first few days of life. The objective of this study is to examine sex differentials in neonatal mortality by detailed ages in a low-income setting. DESIGN This is a secondary observational analysis of data. SETTING Rural Sarlahi district, Nepal. PARTICIPANTS Neonates born between 1999 and 2017 in three randomised controlled trials. OUTCOME MEASURES We calculated study-specific and pooled mortality rates for boys and girls by ages (0-1, 1-3, 3-7, 7-14, 14-21 and 21-28 days) and estimated HR using Cox proportional hazards models for male versus female mortality for treatment and control groups together (n=59 729). RESULTS Neonatal mortality was higher in boys than girls in individual studies: 44.2 vs 39.7 in boys and girls in 1999-2000; 30.0 vs 29.6 in 2002-2006; 33.4 vs 29.4 in 2010-2017; and 33.0 vs 30.2 in the pooled data analysis. Pooled data found that early neonatal mortality (HR=1.17; 95% CI: 1.06 to 1.30) was significantly higher in boys than girls. All individual datasets showed a reversal in mortality by sex after the third week of life. In the fourth week, a reversal was observed, with mortality in girls 2.43 times higher than boys (HR=0.41; 95% CI: 0.31 to 0.79). CONCLUSIONS Boys had higher mortality in the first week followed by no sex difference in weeks 2 and 3 and a reversal in risk in week 4, with girls dying at more than twice the rate of boys. This may be a result of gender discrimination and social norms in this setting. Interventions to reduce gender discrimination at the household level may reduce female neonatal mortality. TRIAL REGISTRATION NUMBER NCT00115271, NCT00109616, NCT01177111.
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Affiliation(s)
- Seema Subedi
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Joanne Katz
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Daniel Joseph Erchick
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Andrea Verhulst
- Population Studies Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Luke C Mullany
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Global Health, George Washington University School of Public Health and Health Services, Washington, District of Columbia, USA
| | - Steven C LeClerq
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project, Sarlahi, Kathmandu, Nepal
| | - Parul Christian
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Keith P West
- International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Michel Guillot
- Population Studies Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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16
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Lama TP, Moore K, Isanaka S, Jones L, Bedford J, de Pee S, Katz J, Khatry SK, LeClerq SC, Tielsch JM. Compliance with and acceptability of two fortified balanced energy protein supplements among pregnant women in rural Nepal. Maternal & Child Nutrition 2022; 18:e13306. [PMID: 34908227 PMCID: PMC8932730 DOI: 10.1111/mcn.13306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/30/2021] [Accepted: 11/17/2021] [Indexed: 11/28/2022]
Abstract
Some evidence suggests that balanced energy protein (BEP) supplements taken during pregnancy and lactation can have positive effects on birth outcomes such as small‐for‐gestational age and birthweight, but more evidence is needed on the long‐term use and acceptability of such supplements. We conducted a mixed‐methods formative research study to assess and compare compliance with and acceptability of two BEP supplements, a lipid‐based peanut paste and a biscuit, to identify BEP supplements for subsequent inclusion in an efficacy trial. We conducted an 8‐week feeding trial of daily supplementation among two groups of 40 pregnant women each in rural Nepal. Compliance data were collected and supplements distributed at the weekly visits. Sensory properties of the supplements were assessed using a 7‐point Likert scale. In addition, in‐depth interviews with women (n = 16), family members (n = 6) and health workers (n = 6) and focus group discussions (FGDs) (n = 4) were conducted to explore themes related to general use and intention of future use of the supplement. Overall self‐reported compliance was high: medians of 91.1% in the lipid‐based peanut paste group and 96.4% in the biscuit group. Both supplements were rated highly on overall likability (median score 6/7) and sensory properties. Qualitative findings showed that sustained use of the supplements was attributed to expected health benefits, favourable sensory attributes, and family support. The FGDs suggested providing the option to choose between more than one type/flavour of supplements to improve compliance. Sharing was mostly evident in the first week with higher sharing reported in the biscuit group. Both the lipid‐based peanut paste and the vanilla biscuit were well accepted by pregnant women in rural Nepal during an 8‐week home feeding trial. The compliance measurements showed high overall compliance in both supplement groups with the reasons being the perceived health benefits to the mother and baby, favourable sensory properties, enabling environment at home for product consumption (privacy and family support) and ease of product use. Before an efficacy trial of a nutritional food supplement, it is important to conduct a mixed‐methods feeding trial in the study population to understand the contextual factors that enable and prevent the use of supplements to inform ways to improve compliance with the supplements.
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Affiliation(s)
- Tsering P. Lama
- Nepal Nutrition Intervention Project—Sarlahi (NNIPS) Kathmandu Nepal
| | | | - Sheila Isanaka
- Departments of Nutrition and Global Health and Population Harvard T.H. Chan School of Public Health Boston Massachusetts USA
| | | | | | - Saskia de Pee
- Department of Global Health Milken Institute School of Public Health George Washington University Washington District of Columbia USA
| | - Joanne Katz
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
| | - Subarna K. Khatry
- Nepal Nutrition Intervention Project—Sarlahi (NNIPS) Kathmandu Nepal
| | - Steven C. LeClerq
- Nepal Nutrition Intervention Project—Sarlahi (NNIPS) Kathmandu Nepal
- Anthrologica Oxford UK
| | - James M. Tielsch
- Department of Global Health Milken Institute School of Public Health George Washington University Washington District of Columbia USA
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17
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Perchetti GA, Wilcox N, Chu HY, Katz J, Khatry SK, LeClerq SC, Tielsch JM, Jerome KR, Englund JA, Kuypers J. Human Metapneumovirus Infection and Genotyping of Infants in Rural Nepal. J Pediatric Infect Dis Soc 2021; 10:408-416. [PMID: 33137178 DOI: 10.1093/jpids/piaa118] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Acute respiratory tract infections are a serious clinical burden in infants; human metapneumovirus (HMPV) is an important etiological agent. We investigated genotypic variation and molecular epidemiological patterns among infants infected with HMPV in Sarlahi, Nepal, to better characterize infection in a rural, low-resource setting. METHODS Between May 2011 and April 2014, mid-nasal swabs were collected from 3528 infants who developed respiratory symptoms during a longitudinal maternal influenza vaccine study. Sequencing glycoprotein genes permitted genotyping and analyses among subtypes. RESULTS HMPV was detected by reverse-transcriptase polymerase chain reaction (RT-PCR) in 187 (5%) infants, with seasonality observed during fall and winter months. Phylogenetic investigation of complete and partial coding sequences for the F and G genes, respectively, revealed that 3 genotypes were circulating: A2, B1, and B2. HMPV-B was most frequently detected with a single type predominating each season. Both HMPV genotypes exhibited comparable median viral loads. Clinically significant differences between genotypes were limited to increased cough duration and general respiratory symptoms for type B. CONCLUSIONS In rural Nepal, multiple HMPV genotypes circulate simultaneously with an alternating predominance of a single genotype and definitive seasonality. No difference in viral load was detected by genotype and symptom severity was not correlated with RT-PCR cycle threshold or genotype.
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Affiliation(s)
- Garrett A Perchetti
- Department of Laboratory Medicine & Pathology, University of Washington, Seattle, Washington, USA
| | - Naomi Wilcox
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Helen Y Chu
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Subarna K Khatry
- Department of International Health, Johns Hopkins University, Baltimore, Maryland, USA.,Nepal Nutrition Intervention Project Sarlahi, Kathmandu, Nepal
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins University, Baltimore, Maryland, USA.,Nepal Nutrition Intervention Project Sarlahi, Kathmandu, Nepal
| | - James M Tielsch
- Department of Global Health, George Washington University, Washington, DC, USA
| | - Keith R Jerome
- Department of Laboratory Medicine & Pathology, University of Washington, Seattle, Washington, USA.,Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle Children's Research Institute, Seattle, Washington, USA
| | - Jane Kuypers
- Department of Laboratory Medicine & Pathology, University of Washington, Seattle, Washington, USA
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18
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Emanuels A, Hawes SE, Newman KL, Martin ET, Englund JA, Tielsch JM, Kuypers J, Khatry SK, LeClerq SC, Katz J, Chu HY. Respiratory viral coinfection in a birth cohort of infants in rural Nepal. Influenza Other Respir Viruses 2020; 14:739-746. [PMID: 32567818 PMCID: PMC7578290 DOI: 10.1111/irv.12775] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Acute respiratory illnesses are a leading cause of global morbidity and mortality in children. Coinfection with multiple respiratory viruses is common. Although the effects of each virus have been studied individually, the impacts of coinfection on disease severity are less understood. METHODS A secondary analysis was performed of a maternal influenza vaccine trial conducted between 2011 and 2014 in Nepal. Prospective weekly household-based active surveillance of infants was conducted from birth to 180 days of age. Mid-nasal swabs were collected and tested for respiratory syncytial virus (RSV), rhinovirus, influenza, human metapneumovirus (HMPV), coronavirus, parainfluenza (HPIV), and bocavirus by RT-PCR. Coinfection was defined as the presence of two or more respiratory viruses detected as part of the same illness episode. RESULTS Of 1730 infants with a respiratory illness, 327 (19%) had at least two respiratory viruses detected in their primary illness episode. Of 113 infants with influenza, 23 (20%) had coinfection. Of 214 infants with RSV, 87 (41%) had coinfection. The cohort of infants with coinfection had increased occurrence of fever lasting ≥ 4 days (OR 1.4, 95% CI: 1.1, 2.0), and so did the subset of coinfected infants with influenza (OR 5.8, 95% CI: 1.8, 18.7). Coinfection was not associated with seeking further care (OR 1.1, 95% CI: 0.8, 1.5) or pneumonia (OR 1.2, 95% CI: 0.96, 1.6). CONCLUSION A high proportion of infants had multiple viruses detected. Coinfection was associated with greater odds of fever lasting for four or more days, but not with increased illness severity by other measures.
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Affiliation(s)
- Anne Emanuels
- Department of EpidemiologyUniversity of WashingtonSeattleWAUSA
| | | | - Kira L. Newman
- Department of Laboratory MedicineUniversity of WashingtonSeattleWAUSA
| | | | - Janet A. Englund
- Department of Laboratory MedicineUniversity of WashingtonSeattleWAUSA
- Seattle Children’s HospitalSeattleWAUSA
| | - James M. Tielsch
- Department of Global HealthGeorge Washington University Milken Institute School of Public HealthWashingtonDCUSA
| | - Jane Kuypers
- Department of Laboratory MedicineUniversity of WashingtonSeattleWAUSA
| | - Subarna K. Khatry
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - Steven C. LeClerq
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - Joanne Katz
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Helen Y. Chu
- Department of EpidemiologyUniversity of WashingtonSeattleWAUSA
- Department of Laboratory MedicineUniversity of WashingtonSeattleWAUSA
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19
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Katz J, Tielsch JM, Khatry SK, Shrestha L, Breysse P, Zeger SL, Kozuki N, Checkley W, LeClerq SC, Mullany LC. Impact of Improved Biomass and Liquid Petroleum Gas Stoves on Birth Outcomes in Rural Nepal: Results of 2 Randomized Trials. Glob Health Sci Pract 2020; 8:372-382. [PMID: 32680912 DOI: 10.9745/ghsp-d-2000011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/26/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Few randomized trials have assessed the impact of reducing household air pollution from biomass stoves on adverse birth outcomes in low-income countries. METHODS Two sequential trials were conducted in rural low-lying Nepal. Trial 1 was a cluster-randomized step-wedge trial comparing traditional biomass stoves and improved biomass stoves vented with a chimney. Trial 2 was a parallel household-randomized trial comparing vented biomass stoves and liquid petroleum gas (LPG) stoves with a year's supply of gas. Kitchen particulate matter of 2.5 μm or less (PM2.5) and carbon monoxide (CO) were assessed before and after stove installation. Prevalent and incident pregnancies were enrolled at baseline and throughout the trials. Birth anthropometry was compared across differing exposure times in pregnancy. RESULTS In trial 1, the mean 20-hour kitchen PM2.5 concentration was reduced from 1380 µg/m3 to 936 µg/m3. Among infants born before the intervention, mean birth weight and gestational age were 2627 g (SD=443) and 38.8 weeks (SD=3.1), and 39% were low birth weight (LBW), 22% preterm, and 55% small for gestational age (SGA). Adverse birth outcomes were not significantly different with increasing exposure to improved stoves during pregnancy. In trial 2, the mean 20-hour PM2.5 concentration was 885 µg/m3 in households with vented biomass and 442 µg/m3 in those with LPG stoves. Mean birth weight was 2780 g (SD=427) and 2742 g (SD=431), among households with vented and LPG stoves, respectively. Respective percentages for LBW, SGA, and preterm were 23%, 13%, and 42% in the vented stove group and not statistically different from 31%, 17%, and 42% in the LPG group. CONCLUSIONS Improved biomass or LPG stoves did not reduce adverse birth outcomes. PM2.5 and CO following improved stove installation remained well above the World Health Organization indoor air standard of 25 µg/m3 or intermediate air quality guideline of 37.5 µg/m3. Trials that lower indoor air pollution further are needed.
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Affiliation(s)
- Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | | | - Laxman Shrestha
- Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Patrick Breysse
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Scott L Zeger
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - William Checkley
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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20
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Katz J, Tielsch JM, Khatry SK, Shrestha L, Breysse P, Zeger SL, Kozuki N, Checkley W, LeClerq SC, Mullany LC. Impact of Improved Biomass and Liquid Petroleum Gas Stoves on Birth Outcomes in Rural Nepal: Results of 2 Randomized Trials. Glob Health Sci Pract 2020; 8:372-382. [PMID: 32680912 PMCID: PMC7541104 DOI: 10.9745/ghsp-d-20-00011] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/26/2020] [Indexed: 01/10/2023]
Abstract
Improved biomass stoves may not reduce indoor air pollution as much as is needed to have an impact on adverse birth outcomes. Background: Few randomized trials have assessed the impact of reducing household air pollution from biomass stoves on adverse birth outcomes in low-income countries. Methods: Two sequential trials were conducted in rural low-lying Nepal. Trial 1 was a cluster-randomized step-wedge trial comparing traditional biomass stoves and improved biomass stoves vented with a chimney. Trial 2 was a parallel household-randomized trial comparing vented biomass stoves and liquid petroleum gas (LPG) stoves with a year’s supply of gas. Kitchen particulate matter of 2.5 μm or less (PM2.5) and carbon monoxide (CO) were assessed before and after stove installation. Prevalent and incident pregnancies were enrolled at baseline and throughout the trials. Birth anthropometry was compared across differing exposure times in pregnancy. Results: In trial 1, the mean 20-hour kitchen PM2.5 concentration was reduced from 1380 µg/m3 to 936 µg/m3. Among infants born before the intervention, mean birth weight and gestational age were 2627 g (SD=443) and 38.8 weeks (SD=3.1), and 39% were low birth weight (LBW), 22% preterm, and 55% small for gestational age (SGA). Adverse birth outcomes were not significantly different with increasing exposure to improved stoves during pregnancy. In trial 2, the mean 20-hour PM2.5 concentration was 885 µg/m3 in households with vented biomass and 442 µg/m3 in those with LPG stoves. Mean birth weight was 2780 g (SD=427) and 2742 g (SD=431), among households with vented and LPG stoves, respectively. Respective percentages for LBW, SGA, and preterm were 23%, 13%, and 42% in the vented stove group and not statistically different from 31%, 17%, and 42% in the LPG group. Conclusions: Improved biomass or LPG stoves did not reduce adverse birth outcomes. PM2.5 and CO following improved stove installation remained well above the World Health Organization indoor air standard of 25 µg/m3 or intermediate air quality guideline of 37.5 µg/m3. Trials that lower indoor air pollution further are needed.
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Affiliation(s)
- Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | | | - Laxman Shrestha
- Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Patrick Breysse
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Scott L Zeger
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - William Checkley
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Regodón Wallin A, Tielsch JM, Khatry SK, Mullany LC, Englund JA, Chu H, LeClerq SC, Katz J. Nausea, vomiting and poor appetite during pregnancy and adverse birth outcomes in rural Nepal: an observational cohort study. BMC Pregnancy Childbirth 2020; 20:545. [PMID: 32943001 PMCID: PMC7499900 DOI: 10.1186/s12884-020-03141-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 07/28/2020] [Indexed: 01/17/2023] Open
Abstract
Background Nausea and vomiting are experienced by a majority of pregnant women worldwide. Previous studies have yielded conflicting results regarding their impact on birth outcomes and few studies have examined this relationship in settings with limited resources. We aimed to determine the effect of nausea, vomiting and poor appetite during pregnancy on birth outcomes in rural Nepal. Methods Observational cohort study using data collected in two randomized, community-based trials to assess the effect of influenza immunization during pregnancy on reproductive and respiratory outcomes among pregnant women and their offspring. Pregnant women in Sarlahi District, Nepal were recruited from 2011 to 2013. Exposure was defined as nausea, vomiting or poor appetite at any point during pregnancy and by trimester; symptoms were recorded monthly throughout pregnancy. Adverse outcomes were low birth weight (LBW), preterm birth and small for gestational age (SGA). Adjusted relative risks (aRR) with 95% CIs are reported from Poisson regressions with robust variance. Results Among 3,623 pregnant women, the cumulative incidence of nausea, vomiting or poor appetite was 49.5% (n = 1793) throughout pregnancy and 60.6% (n = 731) in the first trimester. Significantly higher aRRs of LBW and SGA were observed among women experiencing symptoms during pregnancy as compared to symptom free women (LBW: aRR 1.20; 95% CI 1.05 1.28; SGA: aRR 1.16; 95% CI 1.05 1.28). Symptoms in the first trimester were not significantly associated with any of the outcomes. In the second trimester, we observed significantly higher aRRs for LBW and SGA (LBW: aRR 1.17; 95% CI 1.01 1.36; SGA: aRR 1.16; 95% CI 1.05 1.29) and a significantly lower aRR for preterm birth (aRR 0.75; 95% CI 0.59 0.96). In the third trimester, we observed significantly higher aRRs for LBW and SGA (LBW: aRR 1.20; 95% CI 1.01 1.43; SGA: aRR 1.14; 95% CI 1.01 1.29). Conclusions Symptoms of nausea, vomiting or poor appetite during pregnancy are associated with LBW, SGA and preterm birth in a setting with limited resources, especially beyond the first trimester. Trial registration Prospectively registered at ClinicalTrials.gov on Dec 17, 2009 (NCT01034254).
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Affiliation(s)
- Amanda Regodón Wallin
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Room W5009, 21203-2105, Baltimore, MD, USA.
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | | | - Luke C Mullany
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Janet A Englund
- Seattle Children's Research Institute, University of Washington, Seattle, WA, USA
| | - Helen Chu
- Department of Medicine, University of Washington, WA, Seattle, USA
| | - Steven C LeClerq
- Nepal Nutrition Intervention Project, Sarlahi, Kathmandu, Nepal.,Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Room W5009, 21203-2105, Baltimore, MD, USA
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22
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Bryce E, Mullany LC, Khatry SK, Tielsch JM, LeClerq SC, Katz J. Coverage of the WHO's four essential elements of newborn care and their association with neonatal survival in southern Nepal. BMC Pregnancy Childbirth 2020; 20:540. [PMID: 32938433 PMCID: PMC7493414 DOI: 10.1186/s12884-020-03239-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/02/2020] [Indexed: 12/01/2022] Open
Abstract
Background Despite recent improvements in child survival, neonatal mortality continues to decline at a slower rate and now represents 47% of under-five deaths globally. The World Health Organization developed core indicators to better monitor the quality of maternal and newborn health services. One such indicator for newborn health is “the proportion of newborns who received all four elements of essential care”. The four elements are immediate and thorough drying, skin to skin contact, delayed cord clamping, and early initiation of breastfeeding. Although there is existing evidence demonstrating an association with decreased neonatal mortality for each element individually, the cumulative impact has not yet been examined. Methods This analysis uses data from a randomized trial to examine the impact of sunflower versus mustard seed oil massage on neonatal mortality and morbidity in the Sarlahi district in Southern Nepal from 2010 to 2017. The proportion of newborn infants receiving an intervention was the exposure and neonatal mortality was the outcome in this analysis. Neonatal mortality was defined as a death between three hours and less than 28 days of age. Associations between neonatal mortality and the essential elements were estimated by Cox proportion hazards models. The hazard ratios and corresponding 95% confidence intervals were reported. Results 28,121 mother-infant pairs and 753 neonatal deaths were included. The percent receiving the individual elements ranged from 19.5% (skin to skin contact) to 68.2% (delayed cord clamping). The majority of infants received one or two of the elements of essential care, with less than 1% receiving all four. Skin to skin contact and early initiation of breastfeeding were associated with lower risk of neonatal mortality (aHR = 0.64 [0.51, 0.81] and aHR = 0.72 [0.60, 0.87], respectively). The risk of mortality declined as the number of elements received increased; receipt of one element compared to zero was associated with a nearly 50% reduction in risk of mortality and receipt of all four elements resulted in a 72% decrease in risk of mortality. Conclusions The receipt of one or more of the four essential elements of newborn care was associated with improved neonatal survival. The more elements of care received, the more survival improved.
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Affiliation(s)
- Emily Bryce
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Subarna K Khatry
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.,Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Nepal Eye Hospital Complex, PO Box 335, Tripureshwor, Kathmandu, Nepal
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Avenue, Washington, DC, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.,Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Nepal Eye Hospital Complex, PO Box 335, Tripureshwor, Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
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23
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Omer SB, Clark DR, Madhi SA, Tapia MD, Nunes MC, Cutland CL, Simões EAF, Aqil AR, Katz J, Tielsch JM, Steinhoff MC, Wairagkar N. Efficacy, duration of protection, birth outcomes, and infant growth associated with influenza vaccination in pregnancy: a pooled analysis of three randomised controlled trials. Lancet Respir Med 2020; 8:597-608. [PMID: 32526188 PMCID: PMC7284303 DOI: 10.1016/s2213-2600(19)30479-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 12/24/2022]
Abstract
Background Maternal influenza immunisation can reduce morbidity and mortality associated with influenza infection in pregnant women and young infants. We aimed to determine the vaccine efficacy of maternal influenza immunisation against maternal and infant PCR-confirmed influenza, duration of protection, and the effect of gestational age at vaccination on vaccine efficacy, birth outcomes, and infant growth up to 6 months of age. Methods We did a pooled analysis of three randomised controlled trials done in Nepal (2011–2014), Mali (2011–2014), and South Africa (2011–2013). Pregnant women, gestational age 17–34 weeks in Nepal, 28 weeks or more in Mali, and 20–36 weeks in South Africa, were enrolled. Women were randomly assigned 1:1 to a study group, in which they received trivalent inactivated influenza vaccine (IIV) in all three trials, or a control group, in which they received saline placebo in Nepal and South Africa or quadrivalent meningococcal conjugate vaccine in Mali. Enrolment at all sites was complete by April 24, 2013. Infants and women were assessed for respiratory illness, and samples from those that met the case definition were tested for influenza by PCR testing. Growth measurements, including length and weight, were obtained at birth at all sites, at 24 weeks in South Africa, and at 6 months in Nepal and Mali. The three trials are registered with ClinicalTrials.gov, numbers NCT01430689, NCT01034254, and NCT02465190. Findings 10 002 women and 9800 liveborn infants were included. Pooled efficacy of maternal vaccination to prevent infant PCR-confirmed influenza up to 6 months of age was 35% (95% CI 19 to 47). The pooled estimate was 56% (28 to 73) within the first 2 months of life, 39% (11 to 58) between 2 and 4 months, and 19% (–9 to 40) between 4 and 6 months. In women, from enrolment during pregnancy to the end of follow-up at 6 months postpartum, the vaccine was 50% (95% CI 32–63) efficacious against PCR-confirmed influenza. Efficacy was 42% (12 to 61) during pregnancy and 60% (36 to 75) postpartum. In women vaccinated before 29 weeks gestational age, the estimated efficacy was 30% (–2 to 52), and in women vaccinated at or after 29 weeks, efficacy was 71% (50 to 83). Efficacy was similar in infants born to mothers vaccinated before or after 29 weeks gestation (34% [95% CI 12 to 51] vs 35% [11 to 52]). There was no overall association between maternal vaccination and low birthweight, stillbirth, preterm birth, and small for gestational age. At 6 months of age, the intervention and control groups were similar in terms of underweight (weight-for-age), stunted (length-for-age), and wasted (weight-for-length). Median centile change from birth to 6 months of age was similar between the intervention and the control groups for both weight and length. Interpretation The assessment of efficacy for women vaccinated before 29 weeks gestational age might have been underpowered, because the point estimate suggests that there might be efficacy despite wide CIs. Estimates of efficacy against PCR-confirmed influenza and safety in terms of adverse birth outcomes should be incorporated into any further consideration of maternal influenza immunisation recommendations. Funding Bill & Melinda Gates Foundation.
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Affiliation(s)
- Saad B Omer
- Yale Institute for Global Health, New Haven, CT, USA; Department of Internal Medicine (Infectious Diseases), Yale School of Medicine, New Haven, CT, USA; Yale School of Nursing, New Haven, CT, USA; Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
| | - Dayna R Clark
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
| | - Shabir A Madhi
- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Science and Technology/National Research Foundation, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Milagritos D Tapia
- Centre pour le Développement des Vaccins, Bamako, Mali; Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Marta C Nunes
- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Science and Technology/National Research Foundation, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Clare L Cutland
- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Science and Technology/National Research Foundation, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Eric A F Simões
- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Section of Infectious Diseases, Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA; Department of Epidemiology, Center for Global Health Colorado School of Public Health, Aurora, CO, USA
| | - Anushka R Aqil
- Department of Health, Behavior, Society, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Mark C Steinhoff
- Cincinnati Children's Hospital Global Health Center, Cincinnati, OH, USA
| | - Niteen Wairagkar
- Bill & Melinda Gates Foundation, Seattle, WA, USA; Vaccines For All, Pune, India
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24
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Newman KL, Stewart LM, Scott EM, Tielsch JM, Englund JA, Khatry SK, Mullany LC, LeClerq SC, Shrestha L, Kuypers JM, Chu HY, Katz J. Assessment of indirect protection from maternal influenza immunization among non-vaccinated household family members in a randomized controlled trial in Sarlahi, Nepal. Vaccine 2020; 38:6826-6831. [PMID: 32814640 PMCID: PMC7527778 DOI: 10.1016/j.vaccine.2020.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 11/22/2022]
Abstract
Acute respiratory infections, including influenza, are common among household member in Nepal. Antenatal influenza vaccination does not confer indirect protection to household members. Challenges include low vaccine efficacy and limited population coverage.
Influenza is a significant cause of morbidity and mortality worldwide, and the World Health Organization highly recommends maternal vaccination during pregnancy. The indirect effect of maternal vaccination on other close contacts other than newborns is unknown. To evaluate this, we conducted a nested substudy between 2011 and 2012 of influenza and acute respiratory illness (ARI) among household members of pregnant women enrolled in a randomized placebo-controlled trial of antenatal influenza vaccination in the rural district of Sarlahi, Nepal. Women were assigned to receive influenza vaccination or placebo during pregnancy and then they and their household members were followed up to 6 months postpartum with weekly symptom surveillance and nasal swab collection. Swabs were tested by RT-PCR for influenza. Rates of laboratory-confirmed influenza and of ARI were compared between vaccine and placebo groups using generalized estimating equations with a Poisson link function. Overall, 1752 individuals in 520 households were eligible for inclusion. There were 82 laboratory-confirmed influenza illness episodes, for a rate of 7.0 per 100 person-years overall. Of the influenza strains able to be typed, 29 were influenza A, 40 were influenza B, and 6 were coinfections with influenza A and B. The rate did not differ significantly whether the household was in the vaccine or placebo group (rate ratio (RR) 1.37, 95% confidence interval (CI) 0.83–2.26). The rate of ARI was 28.5 per 100 person-years overall and did not differ by household group (RR 0.99, 95% CI 0.72–1.36). Influenza vaccination of pregnant women did not provide indirect protection of unvaccinated household members.
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Affiliation(s)
- Kira L Newman
- School of Medicine, University of Washington, Seattle, WA, USA
| | - Laveta M Stewart
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Emily M Scott
- University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, University of Washington, Seattle, WA, USA
| | | | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Nepal Nutrition Intervention Project, Sarlahi, Kathmandu, Nepal
| | - Laxman Shrestha
- Tribhuvan University, Department of Pediatrics and Child Health, Institute of Medicine, Kathmandu, Nepal
| | - Jane M Kuypers
- School of Medicine, University of Washington, Molecular Virology Laboratory, Seattle, WA, USA
| | - Helen Y Chu
- School of Medicine, University of Washington, Seattle, WA, USA.
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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25
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Visscher MO, Summers A, Narendran V, Khatry SK, Sherchand JB, LeClerq SC, Katz J, Tielsch JM, Mullany LC. Physiological changes in newborn skin after natural oil massage in rural Nepal. Journal of Global Health Reports 2020. [DOI: 10.29392/001c.14147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Marty O Visscher
- Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Aimee Summers
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Vivek Narendran
- Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project-Sarlahi (NNIPS), Kathmandu, Nepal
| | - Jeevan B Sherchand
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington District of Columbia, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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26
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Summers A, Visscher MO, Khatry SK, Sherchand JB, LeClerq SC, Katz J, Tielsch JM, Mullany LC. Impact of sunflower seed oil versus mustard seed oil on skin barrier function in newborns: a community-based, cluster-randomized trial. BMC Pediatr 2019; 19:512. [PMID: 31870338 PMCID: PMC6927111 DOI: 10.1186/s12887-019-1871-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 12/03/2019] [Indexed: 01/26/2023] Open
Abstract
Background Natural vegetable oils are widely used for newborn massage in many low resource settings. Animal models indicated that sunflower seed oil (SSO) can accelerate skin barrier recovery following damage, while other oils, including mustard oil (MO), may cause further skin barrier damage. The objective was to compare the effects of two SSO and MO used for routine massage on skin integrity in premature and full-term neonates. Methods This community-based cluster randomized controlled trial included 995 neonates assigned to full body massage with sunflower seed oil (SSO, intervention) or mustard seed oil (MO, standard practice) from July 2012–May 2014 in Sarlahi, Nepal. Skin integrity measures were evaluated over 28 days, including skin condition (erythema, rash, dryness), skin surface pH, stratum corneum (SC) cohesion/protein concentration, and transepidermal water loss (TEWL). Overall means and rates of change in these skin measures were compared between oil groups using bivariate random-effects models. Results 500 and 495 live born neonates received repeated massage with MO and SSO, respectively. Skin pH decreased more quickly for SSO than MO in the first week of life, with a difference in mean daily reductions of 0.02 (95% CI: 0.002–0.040). Erythema, rash and dryness increased (worsened) over days 1–14 then decreased by day 28, with no significant oil group differences. TEWL increased over time, with no significant oil group differences. Gestational age did not modify the effect; the slightly faster decrease in skin pH among SSO infants was similar in magnitude between term and preterm infants. Conclusions Oil type may contribute to differences in skin integrity when neonates are massaged regularly. The more rapid acid mantle development observed for SSO may be protective for neonates in lower resource settings. Trial registration ClinicalTrials.gov (NCT01177111); registered August 6th, 2010.
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Affiliation(s)
- Aimee Summers
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W5009, Baltimore, MD, 21205, USA
| | - Marty O Visscher
- Skin Sciences Program, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Subarna K Khatry
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W5009, Baltimore, MD, 21205, USA.,Nepal Nutrition Intervention Project-Sarlahi (NNIPS), Kathmandu, Nepal
| | - Jeevan B Sherchand
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Maharajgunj Rd, Kathmandu, 44600, Nepal
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W5009, Baltimore, MD, 21205, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W5009, Baltimore, MD, 21205, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Avenue, Washington, DC, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W5009, Baltimore, MD, 21205, USA.
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27
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Murenjekwa W, Makasi R, Ntozini R, Chasekwa B, Mutasa K, Moulton LH, Tielsch JM, Humphrey JH, Smith LE, Prendergast AJ, Bourke CD. Determinants of Urogenital Schistosomiasis Among Pregnant Women and its Association With Pregnancy Outcomes, Neonatal Deaths, and Child Growth. J Infect Dis 2019; 223:1433-1444. [PMID: 31832636 PMCID: PMC8064048 DOI: 10.1093/infdis/jiz664] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/11/2019] [Indexed: 11/28/2022] Open
Abstract
Background Schistosoma haematobium is a parasitic helminth that causes urogenital pathology. The impact of urogenital schistosomiasis during pregnancy on birth outcomes and child growth is poorly understood. Methods Risk factors for urogenital schistosomiasis were characterized among 4437 pregnant women enrolled in a cluster-randomized community-based trial in rural Zimbabwe. Infection was defined via urine microscopy (≥1 S. haematobium egg) and urinalysis (hematuria). Associations between infection and pregnancy outcomes were assessed in case-control analyses using conditional logistic regression. The association of maternal infection with birthweight and length-for-age Z scores (LAZ) at 1 and 18 months of age were assessed using generalized estimating equations. Results Urogenital schistosomiasis (egg positive and/or hematuria positive) was detected in 26.8% of pregnant women. Risk factors significantly associated with infection were maternal age, education, marital status, and religion; household drinking water source and latrine; study region; and season. Urogenital schistosomiasis was not significantly associated with adverse pregnancy outcomes (miscarriage, stillbirth, preterm, and small-for-gestational age), birthweight, neonatal death, or LAZ. Conclusions Including pregnant women in antihelminthic treatment programs would benefit a large number of women in rural Zimbabwe. However, clearance of the low-intensity infections that predominate in this context is unlikely to have additive benefits for pregnancy outcomes or child growth. Clinical Trials Registration NCT01824940.
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Affiliation(s)
| | - Rachel Makasi
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Bernard Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Kuda Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Lawrence H Moulton
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - Jean H Humphrey
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.,Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Laura E Smith
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.,Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York, USA
| | - Andrew J Prendergast
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.,Blizard Institute, Queen Mary University of London, London, UK
| | - Claire D Bourke
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.,Blizard Institute, Queen Mary University of London, London, UK
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28
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Chen CCG, Avondstondt AM, Khatry SK, Singh M, Klasen EM, LeClerq SC, Katz J, Tielsch JM, Mullany LC. Prevalence of symptomatic urinary incontinence and pelvic organ prolapse among women in rural Nepal. Int Urogynecol J 2019; 31:1851-1858. [PMID: 31813031 DOI: 10.1007/s00192-019-04129-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/16/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Although pelvic floor disorders (PFDs) are a significant public health issue in higher income countries, less is known about these disorders and associated risk factors in low income countries. We aimed to determine prevalence and associated risk factors for stress urinary incontinence (SUI), urge urinary incontinence (UUI), and pelvic organ prolapse (POP) in reproductive age women in Sarlahi District in rural Nepal. METHODS We conducted a community-based cross-sectional survey of parous, reproductive age women in rural Nepal and screened for pelvic floor disorders using validated screening questions for PFDs. Overall frequency of self-reported symptoms for SUI, UUI, and POP was estimated and compared across demographic and pregnancy history information. RESULTS Of 14,469 women available for analysis, the mean (SD, range) age was 33.5 (8.2, 13-52) years, and median (range) number of pregnancies was 4 (1-15). The prevalence of SUI was 24.1% (95% CI: 23.3-24.8), of UUI was 13.5% (95% CI: 13.0-14.1), and of POP was 8.0% (95% CI: 7.5-8.4). Bivariate analysis identified the risk of PFD increased incrementally with age and number of vaginal deliveries; these covariates were highly correlated. Multivariable logistic regression revealed age, vaginal deliveries, and previous pelvic surgeries were independently associated with PFD. CONCLUSIONS PFDs are common in a community of parous, reproductive age women in rural Nepal. Risk factors for these conditions are similar to risk factors found in higher income countries.
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Affiliation(s)
- Chi Chiung Grace Chen
- Female Pelvic Medicine and Reconstructive Surgery, Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA.
| | - Andrea M Avondstondt
- Female Pelvic Medicine and Reconstructive Surgery, Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Meeta Singh
- Department of Obstetrics and Gynecology, Institute of Medicine, Kathmandu, Nepal
| | - Elizabeth M Klasen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Steven C LeClerq
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal.,Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - James M Tielsch
- Milken Institute School of Public Health, Department of Global Health, George Washington University, Washington, DC, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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29
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Newman KL, Gustafson K, Englund JA, Khatry SK, LeClerq SC, Tielsch JM, Katz J, Chu HY. Risk of Respiratory Infection following Diarrhea among Adult Women and Infants in Nepal. Am J Trop Med Hyg 2019; 102:28-30. [PMID: 31769386 PMCID: PMC6947774 DOI: 10.4269/ajtmh.19-0405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Globally, diarrheal and respiratory infections are responsible for more than 24% of deaths in children aged less than 5 years. Historically, these disease entities have been studied separately; recent evidence suggests that preceding diarrheal disease may be a risk factor for subsequent respiratory illness. We used data from a community-based, prospective randomized trial of maternal influenza immunization of 3,693 pregnant women and their 3,646 infants conducted in rural Nepal from 2011 to 2014. A case-crossover design was used to determine whether the risk of respiratory infection in the 30 days following a diarrheal episode was increased compared with that 30 days prior. Diarrheal illness was a significant risk factor for subsequent respiratory illness in infants but not in women during pregnancy or in women up to six months postpartum. Diarrheal illness and respiratory infections remain important global sources of morbidity and mortality, and our study supports a causal relationship between them in infants.
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Affiliation(s)
| | | | - Janet A Englund
- Seattle Children's Hospital, Seattle, Washington.,University of Washington, Seattle, Washington
| | - Subarna K Khatry
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Nepal Nutrition Intervention Project-Sarlahi (NNIPS), Sarlahi, Nepal
| | - Stephen C LeClerq
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Nepal Nutrition Intervention Project-Sarlahi (NNIPS), Sarlahi, Nepal
| | - James M Tielsch
- George Washington University Milken Institute School of Public Health, Washington, District of Columbia
| | - Joanne Katz
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Helen Y Chu
- University of Washington, Seattle, Washington
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30
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Mazur NI, Horsley NM, Englund JA, Nederend M, Magaret A, Kumar A, Jacobino SR, de Haan CAM, Khatry SK, LeClerq SC, Steinhoff MC, Tielsch JM, Katz J, Graham BS, Bont LJ, Leusen JHW, Chu HY. Breast Milk Prefusion F Immunoglobulin G as a Correlate of Protection Against Respiratory Syncytial Virus Acute Respiratory Illness. J Infect Dis 2019; 219:59-67. [PMID: 30107412 PMCID: PMC6284547 DOI: 10.1093/infdis/jiy477] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/01/2018] [Indexed: 01/03/2023] Open
Abstract
Background Transplacental respiratory syncytial virus (RSV) antibody transfer has been characterized, but little is known about the protective effect of breast milk RSV-specific antibodies. Serum antibodies against the prefusion RSV fusion protein (pre-F) exhibit high neutralizing activity. We investigate protection of breast milk pre-F antibodies against RSV acute respiratory infection (ARI). Methods Breast milk at 1, 3, and 6 months postpartum and midnasal swabs during infant illness episodes were collected in mother-infant pairs in Nepal. One hundred seventy-four infants with and without RSV ARI were matched 1:1 by risk factors for RSV ARI. Pre-F immunoglobulin A (IgA) and immunoglobulin G (IgG) antibody levels were measured in breast milk. Results The median breast milk pre-F IgG antibody concentration before illness was lower in mothers of infants with RSV ARI (1.4 [interquartile range {IQR}, 1.1-1.6] log10 ng/mL) than without RSV ARI (1.5 [IQR, 1.3-1.8] log10 ng/mL) (P = .001). There was no difference in median maternal pre-F IgA antibody concentrations in cases vs controls (1.7 [IQR, 0.0-2.2] log10 ng/mL vs 1.7 [IQR, 1.2-2.2] log10 ng/mL, respectively; P = .58). Conclusions Low breast milk pre-F IgG antibodies before RSV ARI support a potential role for pre-F IgG as a correlate of protection against RSV ARI. Induction of breast milk pre-F IgG may be a mechanism of protection for maternal RSV vaccines.
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Affiliation(s)
- Natalie I Mazur
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands.,Department of Medicine, University of Washington, Seattle.,Immunotherapy Laboratory, Laboratory for Translational Immunology, University Medical Center Utrecht, The Netherlands
| | | | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle Children's Research Institute
| | - Maaike Nederend
- Immunotherapy Laboratory, Laboratory for Translational Immunology, University Medical Center Utrecht, The Netherlands
| | - Amalia Magaret
- Department of Laboratory Medicine, University of Washington, Seattle.,Department of Biostatistics, University of Washington, Seattle
| | - Azad Kumar
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Shamir R Jacobino
- Immunotherapy Laboratory, Laboratory for Translational Immunology, University Medical Center Utrecht, The Netherlands
| | - Cornelis A M de Haan
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | | | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - James M Tielsch
- Department of Global Health, George Washington University, Washington, District of Columbia
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Barney S Graham
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Louis J Bont
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands.,Laboratory of Translational Immunology, University Medical Center Utrecht, The Netherlands
| | - Jeanette H W Leusen
- Immunotherapy Laboratory, Laboratory for Translational Immunology, University Medical Center Utrecht, The Netherlands
| | - Helen Y Chu
- Department of Medicine, University of Washington, Seattle
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31
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Uddin SMI, Englund JA, Kuypers JY, Chu HY, Steinhoff MC, Khatry SK, LeClerq SC, Tielsch JM, Mullany LC, Shrestha L, Katz J. Burden and Risk Factors for Coronavirus Infections in Infants in Rural Nepal. Clin Infect Dis 2019; 67:1507-1514. [PMID: 29668900 PMCID: PMC6206108 DOI: 10.1093/cid/ciy317] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 04/12/2018] [Indexed: 12/12/2022] Open
Abstract
Background Knowledge of risk factors for symptomatic human coronavirus (HCoV) infections in children in community settings is limited. We estimated the disease burden and impact of birth-related, maternal, household, and seasonal factors on HCoV infections among children from birth to 6 months old in rural Nepal. Methods Prospective, active, weekly surveillance for acute respiratory infections (ARIs) was conducted in infants over a period of 3 years during 2 consecutive, population-based randomized trials of maternal influenza immunization. Midnasal swabs were collected for acute respiratory symptoms and tested for HCoV and other viruses by reverse-transcription polymerase chain reaction. Association between HCoV incidence and potential risk factors was modeled using Poisson regression. Results Overall, 282 of 3505 (8%) infants experienced an HCoV ARI within the first 6 months of life. HCoV incidence overall was 255.6 (95% confidence interval [CI], 227.3–286.5) per 1000 person-years, and was more than twice as high among nonneonates than among neonates (incidence rate ratio [IRR], 2.53; 95% CI, 1.52–4.21). HCoV ARI incidence was also positively associated with the number of children <5 years of age per room in a household (IRR, 1.13; 95% CI, 1.01–1.28). Of the 296 HCoV infections detected, 46% were coinfections with other respiratory viruses. While HCoVs were detected throughout the study period, seasonal variation was also observed, with incidence peaking in 2 winters (December–February) and 1 autumn (September–November). Conclusions HCoV is associated with a substantial proportion of illnesses among young infants in rural Nepal. There is an increased risk of HCoV infection beyond the first month of life.
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Affiliation(s)
- S M Iftekhar Uddin
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Jane Y Kuypers
- Molecular Virology Laboratory, School of Medicine, Seattle
| | - Helen Y Chu
- Harborview Medical Center, University of Washington, Seattle
| | - Mark C Steinhoff
- Global Health Center, Cincinnati Children's Hospital Medical Center, Ohio
| | | | - Steve C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Nepal Nutrition Intervention Project-Sarlahi, Kathmandu
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, D.C
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Laxman Shrestha
- Department of Pediatrics and Child Health, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
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32
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Kuypers J, Perchetti GA, Chu HY, Newman KL, Katz J, Khatry SK, LeClerq SC, Jerome KR, Tielsch JM, Englund JA. Phylogenetic characterization of rhinoviruses from infants in Sarlahi, Nepal. J Med Virol 2019; 91:2108-2116. [PMID: 31389049 PMCID: PMC6800797 DOI: 10.1002/jmv.25563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/01/2019] [Indexed: 12/29/2022]
Abstract
Problem Rhinoviruses (RVs), the most common causes of acute respiratory infections in young children and infants, are highly diverse genetically. Objective To characterize the RV types detected with respiratory illness episodes in infants in Nepal. Study methods Infants born to women enrolled in a randomized trial of maternal influenza immunization in rural, southern Nepal were followed with household‐based weekly surveillance until 180 days of age. Infants with respiratory symptoms had nasal swabs tested for twelve respiratory viruses. A subset with RV alone was selected for sequencing of the VP4/2 gene to identify RV types. Results Among 547 RV‐only positive illnesses detected from December 2012 to April 2014, 285 samples (52%) were sequenced. RV‐A, B, and C species were detected in 193 (68%), 18 (6%), and 74 (26%) specimens, respectively. A total of 94 unique types were identified from the sequenced samples, including 52 RV‐A, 11 RV‐B, and 31 RV‐C. Multiple species and types circulated simultaneously throughout the study period. No seasonality was observed. The median ages at illness onset were 88, 104, and 88 days for RV‐A, B, and C, respectively. The median polymerase chain reaction cycle threshold values did not differ between RV species. No differences between RV species were observed for reported respiratory symptoms, including pneumonia, or for medical care‐seeking. Conclusions Among very young, symptomatic infants in rural Nepal, all three species and many types of RV were identified; RV‐A was detected most frequently. There was no association between RV species and disease severity. RV infections were common among infants less than six months old in southern Nepal. All three species and 94 types of RV were identified by sequencing the VP4/2 gene. Multiple species and types circulated simultaneously throughout the study period. No symptomatic differences between RV species or types were observed.
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Affiliation(s)
- Jane Kuypers
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Garrett A Perchetti
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Helen Y Chu
- Department of Medicine, University of Washington, Seattle, Washington
| | - Kira L Newman
- Department of Medicine, University of Washington, Seattle, Washington
| | - Joanne Katz
- Department of International Health, Johns Hopkins University, Baltimore, Maryland
| | | | - Steven C LeClerq
- Department of International Health, Johns Hopkins University, Baltimore, Maryland.,Nepal Nutrition Intervention Project, Kathmandu, Nepal
| | - Keith R Jerome
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - James M Tielsch
- Department of Global Health, George Washington University, Washington, District of Colombia
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, Seattle, Washington
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33
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Murray AF, Englund JA, Kuypers J, Tielsch JM, Katz J, Khatry SK, Leclerq SC, Chu HY. Infant Pneumococcal Carriage During Influenza, RSV, and hMPV Respiratory Illness Within a Maternal Influenza Immunization Trial. J Infect Dis 2019; 220:956-960. [PMID: 31056697 PMCID: PMC6688054 DOI: 10.1093/infdis/jiz212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/25/2019] [Indexed: 01/26/2023] Open
Abstract
In this post-hoc analysis of midnasal pneumococcal carriage in a community-based, randomized prenatal influenza vaccination trial in Nepal with weekly infant respiratory illness surveillance, 457 of 605 (75.5%) infants with influenza, respiratory syncytial virus (RSV), or human metapneumovirus (hMPV) illness had pneumococcus detected. Pneumococcal carriage did not impact rates of lower respiratory tract disease for these 3 viruses. Influenza-positive infants born to mothers given influenza vaccine had lower pneumococcal carriage rates compared to influenza-positive infants born to mothers receiving placebo (58.1% versus 71.6%, P = 0.03). Maternal influenza immunization may impact infant acquisition of pneumococcus during influenza infection. Clinical Trials Registration. NCT01034254.
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Affiliation(s)
- Alastair F Murray
- School of Medicine and Health Sciences, George Washington University, Washington, District of Columbia
| | - Janet A Englund
- Seattle Children’s Hospital, Washington
- Department of Pediatrics, University of Washington, Seattle
| | - Jane Kuypers
- Department of Laboratory Medicine, University of Washington, Seattle
| | - James M Tielsch
- Global Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia
| | - Joanne Katz
- International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Steven C Leclerq
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Helen Y Chu
- Division of Allergy and Infectious Diseases, University of Washington, Seattle
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34
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Jiang X, Tarczy-Hornoch K, Stram D, Katz J, Friedman DS, Tielsch JM, Matsumura S, Saw SM, Mitchell P, Rose KA, Cotter SA, Varma R. Prevalence, Characteristics, and Risk Factors of Moderate or High Hyperopia among Multiethnic Children 6 to 72 Months of Age: A Pooled Analysis of Individual Participant Data. Ophthalmology 2019; 126:989-999. [PMID: 30822446 DOI: 10.1016/j.ophtha.2019.02.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/15/2019] [Accepted: 02/20/2019] [Indexed: 10/27/2022] Open
Abstract
PURPOSE To describe the prevalence, ocular characteristics, and associated risk factors of moderate to high hyperopia in early childhood. DESIGN Pooled analysis of individual participant data from population-based studies. PARTICIPANTS Six- to 72-month-old multiethnic children who participated in 4 population-based studies of pediatric eye diseases. METHODS The pooled studies conducted comparable parental interviews and ocular examinations including cycloplegic autorefraction. Presence of hyperopia was defined based on cycloplegic refractive error in the worse eye. Multivariate analyses were performed to evaluate the association of potential risk factors with hyperopia risk. MAIN OUTCOME MEASURES Prevalence and odds ratios of moderate to high hyperopia (≥4.0 diopters [D]). RESULTS Cycloplegic refraction was completed in 15 051 children 6 to 72 months of age. Among these children, the overall prevalence of moderate to high hyperopia (≥4.0 D) in the worse eye was 3.2% (95% confidence interval, 2.9%-3.5%), accounting for 15.6% of all hyperopia (≥2.0 D). Among children with moderate to high hyperopia, both eyes were affected in 64.4%, 28.9% showed spherical anisometropia of 1.0 D or more, and 19.5% showed astigmatism of 1.5 D or more. Among 36- to 72-month-old children with moderate to high hyperopia, 17.6% wore glasses. Prevalence of moderate to high hyperopia was slightly less in 12- to 23-month-old children and was relatively stable in children 24 months of age and older. Non-Hispanic and Hispanic white race and ethnicity, family history of strabismus, maternal smoking during pregnancy, and being a participant in the United States studies were associated with a higher risk of moderate to high hyperopia (P < 0.05). CONCLUSIONS By assembling similarly designed studies, our consortium provided robust estimates of the prevalence of moderate to high hyperopia in the general population and showed that in 6- to 72-month-old children, moderate to high hyperopia is not uncommon and its prevalence does not decrease with age. Risk factors for moderate to high hyperopia differ from those for low to moderate hyperopia (2.0-<4.0 D) in preschool children, with family history of strabismus and maternal smoking during pregnancy more strongly associated with moderate to high hyperopia than low to moderate hyperopia.
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Affiliation(s)
- Xuejuan Jiang
- USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California.
| | - Kristina Tarczy-Hornoch
- Department of Ophthalmology, University of Washington, Seattle, Washington; Department of Ophthalmology, Seattle Children's Hospital, Seattle, Washington
| | - Douglas Stram
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - David S Friedman
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Saiko Matsumura
- Singapore Eye Research Institute, Singapore, Republic of Singapore
| | - Seang-Mei Saw
- Singapore Eye Research Institute, Singapore, Republic of Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Republic of Singapore
| | - Paul Mitchell
- Centre for Vision Research, Westmead Institute, Sydney, Australia
| | - Kathryn A Rose
- Discipline of Orthoptics, Graduate School of Health, University of Technology Sydney, Ultimo, Australia
| | - Susan A Cotter
- Southern California College of Optometry, Marshall B. Ketchum University, Fullerton, California
| | - Rohit Varma
- Southern California Eyecare and Vision Research Institute, CHA Medical Group PC, Hollywood Presbyterian Medical Center, Los Angeles, California
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35
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Newman KL, Gustafson K, Englund JA, Magaret A, Khatry S, LeClerq SC, Tielsch JM, Katz J, Chu HY. Effect of Diarrheal Illness During Pregnancy on Adverse Birth Outcomes in Nepal. Open Forum Infect Dis 2019; 6:ofz011. [PMID: 30793004 PMCID: PMC6368846 DOI: 10.1093/ofid/ofz011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 01/10/2019] [Indexed: 11/26/2022] Open
Abstract
Background Adverse birth outcomes, including low birthweight, small for gestational age (SGA), and preterm birth, contribute to 60%–80% of infant mortality worldwide. Little published data exist on the association between diarrhea during pregnancy and adverse birth outcomes. Methods Data were used from 2 community-based, prospective randomized trials of maternal influenza immunization during pregnancy conducted in rural Nepal from 2011 to 2014. Diarrheal illnesses were identified through longitudinal household-based weekly symptom surveillance. Diarrhea episodes were defined as at least 3 watery bowel movements per day for 1 or more days with 7 diarrhea-free days between episodes. The Poisson and log-binomial regression were performed to evaluate baseline characteristics and association between diarrhea during pregnancy and adverse birth outcomes. Results A total of 527 of 3693 women in the study (14.3%) experienced diarrhea during pregnancy. Women with diarrhea had a median of 1 episode of diarrhea (interquartile range [IQR], 1–2 episodes) and 2 cumulative days of diarrhea (IQR, 1–3 days). Of women with diarrhea, 85 (16.1%) sought medical care. In crude and adjusted analyses, women with diarrhea during pregnancy were more likely to have SGA infants (42.6% vs 36.8%; adjusted risk ratio = 1.20; 95% confidence interval, 1.06–1.36; P = .005). Birthweight and preterm birth incidence did not substantially differ between women with diarrhea during pregnancy and those without. Conclusions Diarrheal illness during pregnancy was associated with a higher risk of SGA infants in this rural South Asian population. Interventions to reduce the burden of diarrheal illness during pregnancy may have an impact on SGA births in resource-limited settings.
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Affiliation(s)
- Kira L Newman
- Department of Medicine, University of Washington, Seattle
| | | | - Janet A Englund
- Department of Medicine, University of Washington, Seattle.,Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, Washington
| | - Amalia Magaret
- Department of Medicine, University of Washington, Seattle
| | - Subarna Khatry
- Nepal Neonatal Intervention Project-Sarlahi, Nepal.,Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia
| | - Steven C LeClerq
- Nepal Neonatal Intervention Project-Sarlahi, Nepal.,Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia
| | - James M Tielsch
- Department of Global Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia
| | - Joanne Katz
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
| | - Helen Y Chu
- Department of Medicine, University of Washington, Seattle
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36
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Humphrey JH, Mbuya MNN, Ntozini R, Moulton LH, Stoltzfus RJ, Tavengwa NV, Mutasa K, Majo F, Mutasa B, Mangwadu G, Chasokela CM, Chigumira A, Chasekwa B, Smith LE, Tielsch JM, Jones AD, Manges AR, Maluccio JA, Prendergast AJ. Independent and combined effects of improved water, sanitation, and hygiene, and improved complementary feeding, on child stunting and anaemia in rural Zimbabwe: a cluster-randomised trial. Lancet Glob Health 2019; 7:e132-e147. [PMID: 30554749 PMCID: PMC6293965 DOI: 10.1016/s2214-109x(18)30374-7] [Citation(s) in RCA: 251] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/03/2018] [Accepted: 08/01/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Child stunting reduces survival and impairs neurodevelopment. We tested the independent and combined effects of improved water, sanitation, and hygiene (WASH), and improved infant and young child feeding (IYCF) on stunting and anaemia in in Zimbabwe. METHODS We did a cluster-randomised, community-based, 2 × 2 factorial trial in two rural districts in Zimbabwe. Clusters were defined as the catchment area of between one and four village health workers employed by the Zimbabwe Ministry of Health and Child Care. Women were eligible for inclusion if they permanently lived in clusters and were confirmed pregnant. Clusters were randomly assigned (1:1:1:1) to standard of care (52 clusters), IYCF (20 g of a small-quantity lipid-based nutrient supplement per day from age 6 to 18 months plus complementary feeding counselling; 53 clusters), WASH (construction of a ventilated improved pit latrine, provision of two handwashing stations, liquid soap, chlorine, and play space plus hygiene counselling; 53 clusters), or IYCF plus WASH (53 clusters). A constrained randomisation technique was used to achieve balance across the groups for 14 variables related to geography, demography, water access, and community-level sanitation coverage. Masking of participants and fieldworkers was not possible. The primary outcomes were infant length-for-age Z score and haemoglobin concentrations at 18 months of age among children born to mothers who were HIV negative during pregnancy. These outcomes were analysed in the intention-to-treat population. We estimated the effects of the interventions by comparing the two IYCF groups with the two non-IYCF groups and the two WASH groups with the two non-WASH groups, except for outcomes that had an important statistical interaction between the interventions. This trial is registered with ClinicalTrials.gov, number NCT01824940. FINDINGS Between Nov 22, 2012, and March 27, 2015, 5280 pregnant women were enrolled from 211 clusters. 3686 children born to HIV-negative mothers were assessed at age 18 months (884 in the standard of care group from 52 clusters, 893 in the IYCF group from 53 clusters, 918 in the WASH group from 53 clusters, and 991 in the IYCF plus WASH group from 51 clusters). In the IYCF intervention groups, the mean length-for-age Z score was 0·16 (95% CI 0·08-0·23) higher and the mean haemoglobin concentration was 2·03 g/L (1·28-2·79) higher than those in the non-IYCF intervention groups. The IYCF intervention reduced the number of stunted children from 620 (35%) of 1792 to 514 (27%) of 1879, and the number of children with anaemia from 245 (13·9%) of 1759 to 193 (10·5%) of 1845. The WASH intervention had no effect on either primary outcome. Neither intervention reduced the prevalence of diarrhoea at 12 or 18 months. No trial-related serious adverse events, and only three trial-related adverse events, were reported. INTERPRETATION Household-level elementary WASH interventions implemented in rural areas in low-income countries are unlikely to reduce stunting or anaemia and might not reduce diarrhoea. Implementation of these WASH interventions in combination with IYCF interventions is unlikely to reduce stunting or anaemia more than implementation of IYCF alone. FUNDING Bill & Melinda Gates Foundation, UK Department for International Development, Wellcome Trust, Swiss Development Cooperation, UNICEF, and US National Institutes of Health.
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Affiliation(s)
- Jean H Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA; Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.
| | - Mduduzi N N Mbuya
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA; Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA; Global Alliance for Improved Nutrition, Washington, DC, USA
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Lawrence H Moulton
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA
| | | | - Naume V Tavengwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Kuda Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Florence Majo
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Batsirai Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | | | | | | | - Bernard Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Laura E Smith
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Andrew D Jones
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Amee R Manges
- University of British Columbia, Vancouver, BC, Canada
| | | | - Andrew J Prendergast
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA; Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Blizard Institute, Queen Mary University of London, London, UK
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37
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Kuypers J, Chu HY, Gaydos CA, Katz J, Khatry SK, LeClerq SC, Tielsch JM, Steinhoff MC, Englund JA. Molecular characterization of influenza viruses from women and infants in Sarlahi, Nepal. Diagn Microbiol Infect Dis 2018; 93:305-310. [PMID: 30528424 DOI: 10.1016/j.diagmicrobio.2018.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 10/30/2018] [Accepted: 11/07/2018] [Indexed: 11/30/2022]
Abstract
We used RT-PCR-electrospray ionization-mass spectrometry to identify subtypes and strains of influenza viruses detected during a maternal influenza immunization study in Nepal from May 2011 to April 2014. Hemagglutinin (HA) gene amino acid (aa) sequences of inferred reference strains were compared to those of the vaccines to determine impact of aa relatedness on vaccine efficacy (VE) and disease severity. Three influenza subtypes and many strains were identified. A(H3N2) strains with less than 13 aa differences in HA compared to vaccine strains (matched) showed higher VE than strains with 13 or more differences (mismatched). Yamagata lineage B strains, which were mismatched to the Victoria strain in the vaccine, demonstrated lower VE compared to Victoria strains. Differences in VE were not statistically significant. All A(H1N1pdm) matched the vaccine strain, with 10 or fewer aa differences. Except for women infected with vaccine-matched strains of influenza A, clinical signs and symptoms did not differ between vaccinated and unvaccinated participants.
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Affiliation(s)
- Jane Kuypers
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA.
| | - Helen Y Chu
- Department of Medicine, University of Washington, Seattle, WA, USA
| | | | - Joanne Katz
- Department of International Health, Johns Hopkins University, Baltimore, MD, USA
| | | | - Steven C LeClerq
- Department of International Health, Johns Hopkins University, Baltimore, MD, USA; Nepal Nutrition Intervention Project, Kathmandu, Nepal
| | - James M Tielsch
- Department of Global Health, George Washington University, Washington, DC, USA
| | - Mark C Steinhoff
- Global Health Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, University of Washington, Seattle, WA, USA
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Boonyaratanakornkit J, Englund JA, Magaret AS, Bu Y, Tielsch JM, Khatry SK, Katz J, Kuypers J, Shrestha L, LeClerq SC, Steinhoff MC, Chu HY. Primary and Repeated Respiratory Viral Infections Among Infants in Rural Nepal. J Pediatric Infect Dis Soc 2018; 9:21-29. [PMID: 30423150 PMCID: PMC7317152 DOI: 10.1093/jpids/piy107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 10/10/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND Respiratory viruses cause significant morbidity and death in infants; 99% of such deaths occur in resource-limited settings. Risk factors for initial and repeated respiratory viral infections in young infants in resource-limited settings have not been well described. METHODS From 2011 to 2014, a birth cohort of infants in rural Nepal was enrolled and followed with weekly household-based active surveillance for respiratory symptoms until 6 months of age. Respiratory illness was defined as having any of the following: fever, cough, wheeze, difficulty breathing, and/or a draining ear. We tested nasal swabs of infants with respiratory illness for multiple respiratory viruses by using a reverse transcription polymerase chain reaction assay. The risk of primary and repeated infections with the same virus was evaluated using Poisson regression. RESULTS Of 3528 infants, 1726 (49%) had a primary infection, and 419 (12%) had a repeated infection. The incidences of respiratory viral infection in infants were 1816 per 1000 person-years for primary infections and 1204 per 1000 person-years for repeated infection with the same virus. Exposure to other children and male sex were each associated with an increased risk for primary infection (risk ratios, 1.13 [95% confidence interval (CI), 1.06-1.20] and 1.14 [95% CI, 1.02-1.27], respectively), whereas higher maternal education was associated with a decreased risk for both primary and repeated infections (risk ratio, 0.96 [95% CI, 0.95-0.98]). The incidence of subsequent infection did not change when previous infection with the same or another respiratory virus occurred. Illness duration and severity were not significantly different in the infants between the first and second episodes for any respiratory virus tested. CONCLUSIONS In infants in rural Nepal, repeated respiratory virus infections were frequent, and we found no decrease in illness severity with repeated infections and no evidence of replacement with another virus. Vaccine strategies and public health interventions that provide durable protection in the first 6 months of life could decrease the burden of repeated infections by multiple respiratory viruses, particularly in low-resource countries.
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Affiliation(s)
| | - Janet A Englund
- Department of Pediatrics, Seattle Children’s Hospital, University of Washington, Seattle
| | - Amalia S Magaret
- Department of Laboratory Medicine, University of Washington, Seattle,Department of Biostatistics, University of Washington, Seattle
| | - Yunqi Bu
- Department of Biostatistics, University of Washington, Seattle
| | - James M Tielsch
- Department of Global Health, Milken School of Public Health, George Washington University, Washington, DC
| | | | - Joanne Katz
- Department of International Health, Johns Hopkins University, Baltimore, Maryland
| | - Jane Kuypers
- Department of Laboratory Medicine, University of Washington, Seattle
| | - Laxman Shrestha
- Department of Pediatrics and Child Health, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Steven C LeClerq
- Department of Pediatrics and Child Health, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | | | - Helen Y Chu
- Division of Allergy and Infectious Diseases, University of Washington, Seattle,Correspondence: H. Y. Chu, MD, MPH, University of Washington, Division of Allergy and Infectious Diseases, 325 9th Ave., MS 359779, Seattle, WA 98104 ()
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Murray AF, Englund JA, Tielsch JM, Katz J, Shrestha L, Khatry SK, Carlin K, Leclerq SC, Steinhoff MC, Chu HY. Measles and Rubella Seroprevalence in Mother-Infant Pairs in Rural Nepal and the United States: Pre- and Post-Elimination Populations. Am J Trop Med Hyg 2018; 99:1342-1345. [PMID: 30403166 PMCID: PMC6221218 DOI: 10.4269/ajtmh.17-0836] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 05/22/2018] [Indexed: 12/30/2022] Open
Abstract
We sought to compare seroprevalence of protective measles and rubella-specific antibody in mother-infant pairs across two populations: a pre-disease elimination Nepal population with recently introduced rubella vaccine and post-disease elimination U.S. population. Qualitative measles and rubella immunoglobulin G was assessed in maternal serum and cord blood from 258 pairs in Nepal, 2012-2013 and 49 pairs in Seattle, WA, 2014-2015. High rates of protective antibody were observed in both populations. Two hundred and forty-four (95%) pregnant women in Nepal had protective measles antibody versus 44 (92%) in Seattle (P = 0.42). Ninety-six percent of infants in Nepal (N = 246) and Seattle (N = 43) had protective measles antibody (P = 0.75). Ninety-four percentage of pregnant women in Nepal (N = 242) and Seattle (N = 45) had protective rubella antibody (P = 0.23). Two hundred and thirty-eight (93%) infants in Nepal had protective rubella antibody versus 44 (98%) in Seattle (P = 0.12). Continued surveillance will be necessary to ensure protective immunity, inform progress toward disease elimination in Nepal and avoid reemergence in the United States.
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Affiliation(s)
- Alastair F. Murray
- George Washington University School of Medicine & Health Sciences, Washington, District of Columbia
| | - Janet A. Englund
- Department of Pediatrics, Seattle Children’s Hospital, University of Washington, Seattle, Washington
| | - James M. Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Laxman Shrestha
- Department of Pediatrics and Child Health, Nepal Institute of Medicine, Kathmandu
| | - Subarna K. Khatry
- Nepal Nutrition Intervention Project—Sarlahi (NNIPS), Kathmandu, Nepal
| | - Kristen Carlin
- Children’s Core for Biomedical Statistics, Seattle Children’s Research Institute, Seattle, Washington
| | - Steven C. Leclerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Mark C. Steinhoff
- Global Health Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Helen Y. Chu
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington
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Katz J, Englund JA, Steinhoff MC, Khatry SK, Shrestha L, Kuypers J, Mullany LC, Chu HY, LeClerq SC, Kozuki N, Tielsch JM. Impact of Timing of Influenza Vaccination in Pregnancy on Transplacental Antibody Transfer, Influenza Incidence, and Birth Outcomes: A Randomized Trial in Rural Nepal. Clin Infect Dis 2018; 67:334-340. [PMID: 29452372 PMCID: PMC6051462 DOI: 10.1093/cid/ciy090] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/13/2018] [Indexed: 02/07/2023] Open
Abstract
Background Maternal influenza vaccination protects mothers and their infants in low resource settings, but little is known about whether the protection varies by gestational age at vaccination. Methods Women of childbearing age in rural southern Nepal were surveilled for pregnancy, consented and randomized to receive maternal influenza vaccination or placebo, with randomization stratified on gestational age (17-25 or 26-34 weeks). Enrollment occurred in 2 annual cohorts, and vaccinations occurred from April 2011 through September 2013. Results In sum, 3693 women consented and enrolled, resulting in 3646 live births. Although cord blood antibody titers and the rise in maternal titers were generally greater when women were vaccinated later in pregnancy, this was not statistically significant. The incidence risk ratio (IRR) for maternal influenza in pregnancy through 6 months postpartum was 0.62 (95% confidence interval [CI]: 0.35, 1.10) for those vaccinated 17-25 weeks gestation and 0.89 (95% CI: 0.39, 2.00) for those 26-34 weeks. Infant influenza IRRs were 0.73 (95% CI: 0.51, 1.05) for those whose mothers were vaccinated earlier in gestation, and 0.63 (95% CI: 0.37, 1.08) for those later. Relative risks (RR) for low birthweight were 0.83 (95% CI: 0.71, 0.98) and 0.90 (95% CI: 0.72, 1.12) for 17-25 and 26-34 weeks gestation at vaccination, respectively. IRRs did not differ for small-for-gestational age or preterm. No RRs were statistically different by timing of vaccine receipt. Conclusions Vaccine efficacy did not vary by gestational age at vaccination, making maternal influenza immunization programs easier to implement where women present for care late in pregnancy. Clinical Trials Registration NCT01034254.
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Affiliation(s)
- Joanne Katz
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, Baltimore, Maryland
| | - Janet A Englund
- Seattle Children’s Hospital and Research Foundation, University of Washington, Seattle
| | - Mark C Steinhoff
- Global Health Center, Cincinnati Children’s Hospital Medical Center, Ohio
| | | | - Laxman Shrestha
- Tribhuvan University, Department of Pediatrics and Child Health, Institute of Medicine, Kathmandu, Nepal
| | - Jane Kuypers
- School of Medicine, University of Washington, Molecular Virology Laboratory, Seattle
| | - Luke C Mullany
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, Baltimore, Maryland
| | - Helen Y Chu
- University of Washington, Harborview Medical Center, Seattle
| | - Steven C LeClerq
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, Baltimore, Maryland
- Nepal Nutrition Intervention Project – Sarlahi, Nepal
| | - Naoko Kozuki
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, Baltimore, Maryland
| | - James M Tielsch
- Milken Institute School of Public Health, George Washington University, Department of Global Health, Washington, D.C
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Chasekwa B, Maluccio JA, Ntozini R, Moulton LH, Wu F, Smith LE, Matare CR, Stoltzfus RJ, Mbuya MNN, Tielsch JM, Martin SL, Jones AD, Humphrey JH, Fielding K. Measuring wealth in rural communities: Lessons from the Sanitation, Hygiene, Infant Nutrition Efficacy (SHINE) trial. PLoS One 2018; 13:e0199393. [PMID: 29953495 PMCID: PMC6023145 DOI: 10.1371/journal.pone.0199393] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/25/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Poverty and human capital development are inextricably linked and therefore research on human capital typically incorporates measures of economic well-being. In the context of randomized trials of health interventions, for example, such measures are used to: 1) assess baseline balance; 2) estimate covariate-adjusted analyses; and 3) conduct subgroup analyses. Many factors characterize economic well-being, however, and analysts often generate summary measures such as indices of household socio-economic status or wealth. In this paper, a household wealth index is developed and tested for participants in the cluster-randomized Sanitation, Hygiene, Infant Nutrition Efficacy (SHINE) trial in rural Zimbabwe. METHODS Building on the approach used in the Zimbabwe Demographic and Health Survey (ZDHS), we combined a set of housing characteristics, ownership of assets and agricultural resources into a wealth index using principal component analysis (PCA) on binary variables. The index was assessed for internal and external validity. Its sensitivity was examined considering an expanded set of variables and an alternative statistical approach of polychoric PCA. Correlation between indices was determined using the Spearman's rank correlation coefficient and agreement between quintiles using a linear weighted Kappa statistic. Using the 2015 ZDHS data, we constructed a separate index and applied the loadings resulting from that analysis to the SHINE study population, to compare the wealth distribution in the SHINE study with rural Zimbabwe. RESULTS The derived indices using the different methods were highly correlated (r>0.9), and the wealth quintiles derived from the different indices had substantial to near perfect agreement (linear weighted Kappa>0.7). The indices were strongly associated with a range of assets and other wealth measures, indicating both internal and external validity. Households in SHINE were modestly wealthier than the overall population of households in rural Zimbabwe. CONCLUSION The SHINE wealth index developed here is a valid and robust measure of wealth in the sample.
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Affiliation(s)
- Bernard Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - John A. Maluccio
- Department of Economics, Middlebury College, Middlebury, VT, United States of America
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Lawrence H. Moulton
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Fan Wu
- Department of Economics, Middlebury College, Middlebury, VT, United States of America
| | - Laura E. Smith
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY, United States of America
| | - Cynthia R. Matare
- Program in International Nutrition, Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States of America
| | - Rebecca J. Stoltzfus
- Program in International Nutrition, Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States of America
| | - Mduduzi N. N. Mbuya
- Global Alliance for Improved Nutrition (GAIN), Washington, DC, United States of America
| | - James M. Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, United States of America
| | - Stephanie L. Martin
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina Chapel Hill, Chapel Hill, NC, United States of America
| | - Andrew D. Jones
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States of America
| | - Jean H. Humphrey
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Katherine Fielding
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Lenahan JL, Englund JA, Katz J, Kuypers J, Wald A, Magaret A, Tielsch JM, Khatry SK, LeClerq SC, Shrestha L, Steinhoff MC, Chu HY. Human Metapneumovirus and Other Respiratory Viral Infections during Pregnancy and Birth, Nepal. Emerg Infect Dis 2018; 23. [PMID: 28726613 PMCID: PMC5547777 DOI: 10.3201/eid2308.161358] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Human metapneumovirus (HMPV) is a respiratory virus that can cause severe lower respiratory tract disease and even death, primarily in young children. The incidence and characteristics of HMPV have not been well described in pregnant women. As part of a trial of maternal influenza immunization in rural southern Nepal, we conducted prospective, longitudinal, home-based active surveillance for febrile respiratory illness during pregnancy through 6 months postpartum. During 2011-2014, HMPV was detected in 55 of 3,693 women (16.4 cases/1,000 person-years). Twenty-five women were infected with HMPV during pregnancy, compared with 98 pregnant women who contracted rhinovirus and 7 who contracted respiratory syncytial virus. Women with HMPV during pregnancy had an increased risk of giving birth to infants who were small for gestational age. An intervention to reduce HMPV febrile respiratory illness in pregnant women may have the potential to decrease risk of adverse birth outcomes in developing countries.
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Kozuki N, Mullany LC, Khatry SK, Tielsch JM, LeClerq SC, Kennedy CE, Katz J. Perceptions, careseeking, and experiences pertaining to non-cephalic births in rural Sarlahi District, Nepal: a qualitative study. BMC Pregnancy Childbirth 2018; 18:89. [PMID: 29636021 PMCID: PMC5894138 DOI: 10.1186/s12884-018-1724-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 03/29/2018] [Indexed: 11/12/2022] Open
Abstract
Background In low-resource settings, a significant proportion of fetal, neonatal, and maternal deaths can be attributed to intrapartum-related complications. Certain risk factors, such as non-cephalic presentation, have a particularly high risk of complications. This qualitative study describes experiences around non-cephalic births and highlights existing perceptions and care-seeking behavior specific to non-cephalic presentation in rural Sarlahi District, Nepal. Methods We conducted in-depth interviews with 34 individuals, including women who recently gave birth to a non-cephalic infant and female decision-makers in their households. We also conducted two focus groups with mothers (have two or more children, with at least one child under age five) and two focus groups with grandmothers in the community. Results Several women described scenes of obstructed labor and practices like provision of unspecified injections early in labor to assist with the delivery. There were reports of arduous care-seeking processes from primary health centers to tertiary facilities, and mixed quality of care among home birth attendants and facility-based health workers respectively. Very few women were aware of the fetal presentation prior to delivery, and we identified no consistent understanding among participants of the risks of and care strategies for non-cephalic births. Risk perception around non-cephalic presentation varied widely. Some participants were acutely aware of potential dangers, while others had not heard of non-cephalic birth. Many interviewees said that the position in which a pregnant woman sleeps could impact the fetal position. Several participants had either taken or heard of medication intended to rotate the fetus into the correct position. Conclusions Our findings suggest the mixed quality of and access to care associated with non-cephalic birth and a lack of consistent understanding of the risk of and care for non-cephalic births in rural Nepal. The high risk of the condition and the recommended tertiary care present a dilemma in low-resource settings; the logistical difficulties and the mixed quality of care make care-seeking and referral decisions complex. While public health stakeholders strive to improve the quality of and access to the formal health system, those players must also be sensitive to the potential negative implications of promoting institutional care-seeking. Electronic supplementary material The online version of this article (10.1186/s12884-018-1724-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA.
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | | | - James M Tielsch
- Department of Global Health, George Washington University School of Public Health and Health Services, Washington, DC, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Caitlin E Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
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Summers A, Visscher M, Khatry SK, Sherchand JB, LeClerq SC, Katz J, Tielsch JM, Mullany LC. Indicators of skin barrier integrity among newborns massaged with mustard oil in rural Nepal. J Perinatol 2018; 38:64-70. [PMID: 29120456 PMCID: PMC5775032 DOI: 10.1038/jp.2017.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/21/2017] [Accepted: 08/30/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE The objective of this study was to determine the skin barrier changes during postnatal month 1 among infants receiving routine mustard oil massage in the humid conditions of rural Nepal. STUDY DESIGN This was an observational study among 500 live-born neonates receiving mustard oil massage. Skin integrity such as erythema, rash, dryness, skin pH, stratum corneum protein concentration and transepidermal water loss was measured on days 1, 3, 7, 14 and 28. RESULTS Erythema and rash increased (worsened) during weeks 1 and 2, then decreased over weeks 3 and 4. Skin pH (6.1±0.5 to 5.0±0.6) and stratum corneum protein (16.6±7.9 to 13.5±5.9 μg cm-2) decreased. Transepidermal water loss increased from 33.2±23.5 to 43.0±24.5 g m-2 h-1 at day 28. Skin pH and stratum corneum protein were higher for early versus late premature infants. CONCLUSION Premature and full-term skin condition was generally poor especially during the first 2 weeks, improving thereafter. Maturational changes were evident.
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Affiliation(s)
- Aimee Summers
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA
| | - Marty Visscher
- Skin Sciences Institute, Cincinnati Children’s Hospital Medical Center, Ohio, USA
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project-Sarlahi (NNIPS). Kathmandu, Nepal
| | - Jeevan B Sherchand
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA,Nepal Nutrition Intervention Project-Sarlahi (NNIPS). Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington DC, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA
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Katz J, Englund JA, Steinhoff MC, Khatry SK, Shrestha L, Kuypers J, Mullany LC, Chu HY, LeClerq SC, Kozuki N, Tielsch JM. Nutritional status of infants at six months of age following maternal influenza immunization: A randomized placebo-controlled trial in rural Nepal. Vaccine 2017; 35:6743-6750. [PMID: 29100709 PMCID: PMC5714610 DOI: 10.1016/j.vaccine.2017.09.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 09/27/2017] [Accepted: 09/29/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND Maternal influenza vaccination has increased birth weight in two randomized trials in South Asia but the impact on infant growth is unknown. METHODS A randomized placebo-controlled trial of year round maternal influenza immunization was conducted in two annual cohorts in Sarlahi District, southern plains of Nepal, from April 2011 through April 2014. Infants born to women enrolled in the trial had weight, length, and head circumference measured at birth and 6 months of age. The study was powered for the 3 primary trial outcomes but not for stunting and wasting at 6 months of age. RESULTS 3693 women received placebo or influenza vaccine between 17 and 34 weeks gestation, resulting in 3646 live births. About 72% of infants who survived had weight and length measurements between 150 and 210 days of age. Prevalence of stunting (<-2 Z scores length-for-age) was 14.8% in the placebo and 13.6% in the vaccine groups, respectively. Stunting < -3 Z scores was 3.2% versus 2.0% in placebo versus vaccine groups (RR: 0.64 (95% CI: 0.39, 1.04)). Wasting (< -2 Z scores weight for length) was 10.3% versus 11.0% for placebo versus vaccine groups. Severe wasting (< -3 Z scores weight for length) was 3.8% for placebo versus 2.6% for vaccine (RR: 0.69 (95% CI: 0.44, 1.07)). The impact of flu vaccine on wasting was greater in cohort 2 than in cohort 1, (RR: 0.66 (0.44, 0.99) for any wasting), and RR: 0.45 (0.19, 1.09) for severe wasting. This corresponded to a larger impact on birth weight and a better vaccine match with circulating viruses in cohort 2. CONCLUSIONS Although maternal immunization reduced low birth weight by 15%, only wasting at 6 months in the 2nd cohort was statistically significantly difference. However, the study was underpowered to detect reductions of public health importance. TRIAL REGISTRATION Clinicaltrials.gov (NCT01034254).
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Affiliation(s)
- Joanne Katz
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, 615 N. Wolfe Street, Room W5009, Baltimore, MD 21205-2103, USA.
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, University of Washington, 4800 Sand Point Way N.E., R5441, Seattle, WA 98105, USA.
| | - Mark C Steinhoff
- Global Health Center, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC2048, Cincinnati, OH 45229, USA.
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal.
| | - Laxman Shrestha
- Tribhuvan University, Department of Pediatrics and Child Health, Institute of Medicine, Kathmandu, Nepal.
| | - Jane Kuypers
- School of Medicine, University of Washington, Molecular Virology Laboratory, Suite 320, 1616 Eastlake Ave. E., Seattle, WA 98102, USA.
| | - Luke C Mullany
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, 615 N. Wolfe Street, Room W5009, Baltimore, MD 21205-2103, USA.
| | - Helen Y Chu
- University of Washington, Harborview Medical Center, 325 9th Ave, MS 359779, Seattle, WA 98104, USA.
| | - Steven C LeClerq
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, 615 N. Wolfe Street, Room W5009, Baltimore, MD 21205-2103, USA; Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal.
| | - Naoko Kozuki
- Johns Hopkins Bloomberg School of Public Health, Department of International Health, 615 N. Wolfe Street, Room W5009, Baltimore, MD 21205-2103, USA.
| | - James M Tielsch
- Milken Institute School of Public Health, George Washington University, Department of Global Health, 950 New Hampshire Ave NW, Suite 400, Washington, DC, 20052, USA.
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Kozuki N, Katz J, Englund JA, Steinhoff MC, Khatry SK, Shrestha L, Kuypers J, Mullany LC, Chu HY, LeClerq SC, Tielsch JM. Impact of maternal vaccination timing and influenza virus circulation on birth outcomes in rural Nepal. Int J Gynaecol Obstet 2017; 140:65-72. [PMID: 28984909 PMCID: PMC5765513 DOI: 10.1002/ijgo.12341] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 08/01/2017] [Accepted: 10/04/2017] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To describe the effect of maternal vaccination on birth outcomes in rural Nepal, modified by timing of vaccination in pregnancy and influenza virus activity. METHODS A secondary analysis was conducted using data from two annual cohorts of a randomized controlled trial. A total of 3693 pregnant women from Sarlahi District were enrolled between April 25, 2011, and September 9, 2013. All participants were aged 15-40 years and received a trivalent inactivated influenza vaccine or placebo. The outcome measures included birth weight, pregnancy length, low birth weight (<2500 g), preterm birth, and small-for-gestational-age birth. RESULTS Data were available on birth weight for 2741 births and on pregnancy length for 3623 births. Maternal vaccination increased mean birthweight by 42 g (95% confidence interval [CI] 8-76). The magnitude of this increase varied by season but was greatest among pregnancies with high influenza virus circulation during the third trimester. Birth weight increased by 111 g (95% CI -51 to 273) when 75%-100% of a pregnancy's third trimester had high influenza virus circulation versus 38 g (95% CI -6 to 81) when 0%-25% of a pregnancy's third trimester had high influenza virus circulation. However, these results were nonsignificant. CONCLUSION Seasonal maternal influenza vaccination in rural Nepal increased birth weight; the magnitude appeared larger during periods of high influenza virus circulation. CLINICALTRIALS.GOV: NCT01034254.
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Affiliation(s)
- Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, University of Washington, Seattle, WA, USA
| | - Mark C Steinhoff
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Laxman Shrestha
- Department of Pediatrics and Child Health, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Jane Kuypers
- Molecular Virology Laboratory, School of Medicine, University of Washington, Seattle, WA, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Helen Y Chu
- Harborview Medical Center, University of Washington, Seattle, WA, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
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Soneja SI, Tielsch JM, Khatry SK, Zaitchik B, Curriero FC, Breysse PN. Characterizing Particulate Matter Exfiltration Estimates for Alternative Cookstoves in a Village-Like Household in Rural Nepal. Environ Manage 2017; 60:797-808. [PMID: 28801708 DOI: 10.1007/s00267-017-0915-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 07/14/2017] [Indexed: 06/07/2023]
Abstract
Alternative stoves are an intervention option to reduce household air pollution. The amount of air pollution exiting homes when alternative stoves are utilized is not known. In this paper, particulate matter exfiltration estimates are presented for four types of alternative stoves within a village-like home, which was built to reflect the use of local materials and common size, in rural Nepal. Four alternative stoves with chimneys were examined, which included an alternative mud brick stove, original Envirofit G3355 model, manufacture altered Envirofit G3355, and locally altered Envirofit G3355. Multiple linear regression was utilized to determine estimates of PM2.5 exfiltration. Overall exfiltration fraction average (converted to a percent) for the four stoves were: alternative mud brick stove with chimney 56%, original Envirofit G3355 model with chimney 87%, manufacture altered Envirofit G3355 model with chimney 69%, and locally altered Envirofit G3355 model with chimney 69%. Alternative cookstoves resulted in higher overall average exfiltration due to direct and indirect ventilation relative to traditional, mud-based stoves. This contrast emphasizes the need for an improved understanding of the climate and health implications that are believed to come from implementing alternative stoves on a large scale and the resultant shift of exposure burden from indoors to outdoors.
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Affiliation(s)
- Sutyajeet I Soneja
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USA.
| | - James M Tielsch
- Department of Global Health, Milken School of Public Health and Health Services, George Washington University, Washington, DC, 20037, USA
| | | | - Benjamin Zaitchik
- Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Frank C Curriero
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Patrick N Breysse
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USA
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48
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Lee AC, Kozuki N, Cousens S, Stevens GA, Blencowe H, Silveira MF, Sania A, Rosen HE, Schmiegelow C, Adair LS, Baqui AH, Barros FC, Bhutta ZA, Caulfield LE, Christian P, Clarke SE, Fawzi W, Gonzalez R, Humphrey J, Huybregts L, Kariuki S, Kolsteren P, Lusingu J, Manandhar D, Mongkolchati A, Mullany LC, Ndyomugyenyi R, Nien JK, Roberfroid D, Saville N, Terlouw DJ, Tielsch JM, Victora CG, Velaphi SC, Watson-Jones D, Willey BA, Ezzati M, Lawn JE, Black RE, Katz J. Estimates of burden and consequences of infants born small for gestational age in low and middle income countries with INTERGROWTH-21 st standard: analysis of CHERG datasets. BMJ 2017; 358:j3677. [PMID: 28819030 PMCID: PMC5558898 DOI: 10.1136/bmj.j3677] [Citation(s) in RCA: 207] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objectives To estimate small for gestational age birth prevalence and attributable neonatal mortality in low and middle income countries with the INTERGROWTH-21st birth weight standard.Design Secondary analysis of data from the Child Health Epidemiology Reference Group (CHERG), including 14 birth cohorts with gestational age, birth weight, and neonatal follow-up. Small for gestational age was defined as infants weighing less than the 10th centile birth weight for gestational age and sex with the multiethnic, INTERGROWTH-21st birth weight standard. Prevalence of small for gestational age and neonatal mortality risk ratios were calculated and pooled among these datasets at the regional level. With available national level data, prevalence of small for gestational age and population attributable fractions of neonatal mortality attributable to small for gestational age were estimated.Setting CHERG birth cohorts from 14 population based sites in low and middle income countries.Main outcome measures In low and middle income countries in the year 2012, the number and proportion of infants born small for gestational age; number and proportion of neonatal deaths attributable to small for gestational age; the number and proportion of neonatal deaths that could be prevented by reducing the prevalence of small for gestational age to 10%.Results In 2012, an estimated 23.3 million infants (uncertainty range 17.6 to 31.9; 19.3% of live births) were born small for gestational age in low and middle income countries. Among these, 11.2 million (0.8 to 15.8) were term and not low birth weight (≥2500 g), 10.7 million (7.6 to 15.0) were term and low birth weight (<2500 g) and 1.5 million (0.9 to 2.6) were preterm. In low and middle income countries, an estimated 606 500 (495 000 to 773 000) neonatal deaths were attributable to infants born small for gestational age, 21.9% of all neonatal deaths. The largest burden was in South Asia, where the prevalence was the highest (34%); about 26% of neonatal deaths were attributable to infants born small for gestational age. Reduction of the prevalence of small for gestational age from 19.3% to 10.0% in these countries could reduce neonatal deaths by 9.2% (254 600 neonatal deaths; 164 800 to 449 700).Conclusions In low and middle income countries, about one in five infants are born small for gestational age, and one in four neonatal deaths are among such infants. Increased efforts are required to improve the quality of care for and survival of these high risk infants in low and middle income countries.
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Affiliation(s)
- Anne Cc Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA
| | - Naoko Kozuki
- International Rescue Committee, 1730 M Street NW, Suite 505, Washington, DC 20036, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Simon Cousens
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Gretchen A Stevens
- Department of Information, Evidence and Research, World Health Organization (WHO), Geneva, Switzerland, CH-1211
| | - Hannah Blencowe
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Mariangela F Silveira
- Programa de Pós-graduacao em Epidemiologia, Universidade Federal de Pelotas, Rua Marechal Deodoro 1160, 30 piso, Centro, CEP 96020-220, Pelotas, RS, Brazil
| | - Ayesha Sania
- Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY 10032
| | - Heather E Rosen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Department of Immunology and Microbiology, University of Copenhagen, Oester Farimagsgade 5, 1014 Copenhagen K, Denmark
| | - Linda S Adair
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, 137 E. Franklin, Chapel Hill, NC 27516, USA
| | - Abdullah H Baqui
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Fernando C Barros
- Programa de Pós-graduação em Saúde e Comportamento, Universidade Católica de Pelotas, Félix da Cunha, 412, CEP 96010-000, Centro, Pelotas, RS, Brazil
| | - Zulfiqar A Bhutta
- Center for Global Child Health, Hospital for Sick Children, 686 Bay Street, Toronto, ON, M5G A04, Canada
- Centre of Excellence in Women and Child Health, Aga Khan University, Stadium Road PO Box 3500, Karachi 74800, India
| | - Laura E Caulfield
- Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W2041, Baltimore, MD 21205 USA
| | - Parul Christian
- Women's Nutrition, Bill and Melinda Gates Foundation, Seattle, WA 98102, USA
| | - Siân E Clarke
- Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Malaria Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Wafaie Fawzi
- Department of Global Health and Population, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
- Department of Nutrition, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
- Department of Epidemiology, Harvard School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
| | - Rogelio Gonzalez
- Pontificia Universidad Católica de Chile, School of Medicine, Avenida Libertador General Bernardo O'Higgins #340, Santiago, Chile
- Clínica Santa María, Avenida Santa María 0410 Providencia, Santiago, Chile
| | - Jean Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W2041, Baltimore, MD 21205 USA
- Zvitambo Institute for Maternal and Child Health Research, 16 Lauchlan Road, Meyrick Park, Harare, Zimbabwe
| | - Lieven Huybregts
- Department of Food Safety and Food Quality, Ghent University, Coupure Links 653 - 9000 Ghent, Belgium
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, 2033 K St, NW Washington, DC 20006-1002, USA
| | - Simon Kariuki
- Kenya Medical Research Institute, Centre for Global Health Research, PO Box 1578-40100, Kisumu, Kenya
- Centers for Disease Control and Prevention Kenya, Off Kisumu-Busia Highway, PO Box 1578-40100, Kisumu, Kenya
| | - Patrick Kolsteren
- Department of Food Safety and Food Quality, Ghent University, Coupure Links 653 - 9000 Ghent, Belgium
| | - John Lusingu
- National Institute for Medical Research, PO Box 5004, Tanga, Tanzania
- University of Copenhagen, Denmark
| | - Dharma Manandhar
- Mother and Infant Research Activities (MIRA), YB Bhawan, Thapathali, Kathmandu 921, Nepal
| | - Aroonsri Mongkolchati
- ASEAN Institute for Health Development, Mahidol University, 999 Phuttamonthon 4 Rd, Salaya, Nakhon Pathom 73170, Thailand
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Richard Ndyomugyenyi
- Vector Control Division, Ministry of Health, Uganda, Plot 6 Lourdel Rd, Nakasero, Kampala, Uganda
| | - Jyh Kae Nien
- Fetal Maternal Medicine Unit, Clinica Davila, Avenida Recoleta 464, Santiago, Chile
- Faculty of Medicine, Universidad de Los Andes, Avda San Carlos De Apoquindo 2200, Santiago, Chile
| | - Dominique Roberfroid
- Belgian Health Care Knowledge Centre, Boulevard du Jardin Botanique 55, Brussels, Belgium
| | - Naomi Saville
- Mother and Infant Research Activities (MIRA), YB Bhawan, Thapathali, Kathmandu 921, Nepal
- Institute for Global Health, University College London Institute of Child Health, London WC1N 1EH, UK
| | - Dianne J Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, PO Box 30096, Chichiri, Blantyre 3, Malawi
| | - James M Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave, NW, Suite 400, Washington, DC 20052, USA
| | - Cesar G Victora
- Programa de Pós-graduacao em Epidemiologia, Universidade Federal de Pelotas, Rua Marechal Deodoro 1160, 30 piso, Centro, CEP 96020-220, Pelotas, RS, Brazil
| | - Sithembiso C Velaphi
- Department of Paediatrics, Chris Hani Baragwaneth Hospital, Faculty of Health Sciences, University of Witwatersrand, Soweto, Johannesburg, South Africa
| | - Deborah Watson-Jones
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, UK
- Mwanza Intervention Trial Unit, National Institute for Medical Research, Mwanza, Tanzania
| | - Barbara A Willey
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Majid Ezzati
- MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, London W2 1PG, UK
| | - Joy E Lawn
- Facuty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Maternal, Adolescent, Reproductive, and Child Health (MARCH) Centre, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Robert E Black
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Institute for International Programs, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
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Steinhoff MC, Katz J, Englund JA, Khatry SK, Shrestha L, Kuypers J, Stewart L, Mullany LC, Chu HY, LeClerq SC, Kozuki N, McNeal M, Reedy AM, Tielsch JM. Year-round influenza immunisation during pregnancy in Nepal: a phase 4, randomised, placebo-controlled trial. Lancet Infect Dis 2017; 17:981-989. [PMID: 28522338 DOI: 10.1016/s1473-3099(17)30252-9] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 02/10/2017] [Accepted: 03/06/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Influenza immunisation during pregnancy is recommended but not widely implemented in some low-income regions. We assessed the safety and efficacy in mothers and infants of year-round maternal influenza immunisation in Nepal, where influenza viruses circulate throughout the year. METHODS In this phase 4, randomised, placebo-controlled trial, we enrolled two consecutive sequential annual cohorts of pregnant women from the Sarlahi district in southern Nepal. We randomised mothers 1:1 to receive seasonally recommended trivalent inactivated influenza vaccine or saline placebo in blocks of eight, stratified by gestational age at enrolment (17-25 weeks vs 26-34 weeks). Women were eligible if they were married, 15-40 years of age, 17-34 weeks' gestation at enrolment, and had not previously received any influenza vaccine that season. We collected serum samples before and after immunisation, and cord blood from a subset of women and infants. Staff masked to allocation made home visits every week from enrolment to 6 months after delivery. Midnasal swabs for respiratory virus PCR testing were collected during maternal acute febrile respiratory infections, and from infants with any respiratory symptom. We assessed vaccine immunogenicity, safety, and three primary outcomes: the incidence of maternal influenza-like illness in pregnancy and 0-180 days postpartum, the incidence of low birthweight (<2500 g), and the incidence of laboratory-confirmed infant influenza disease from 0 to 180 days. This trial is registered with ClinicalTrials.gov, number NCT01034254. FINDINGS From April 25, 2011, to Sept 9, 2013, we enrolled 3693 women in two cohorts of 2090 (1041 assigned to placebo and 1049 to vaccine) and 1603 (805 assigned to placebo and 798 to vaccine), with 3646 liveborn infants (cohort 1, 999 in placebo group and 1010 in vaccine group; cohort 2, 805 in placebo group and 798 in vaccine group). Immunisation reduced maternal febrile influenza-like illness with an overall efficacy of 19% (95% CI 1 to 34) in the combined cohorts; 9% efficacy (-16 to 29) in the first cohort, and 36% efficacy (9 to 55) in the second cohort. For laboratory-confirmed influenza infections in infants aged 0-6 months, immunisation had an overall efficacy for the combined cohorts of 30% (95% CI 5 to 48); in the first cohort, the efficacy was 16% (-19 to 41), and in the second cohort it was 60% (26 to 88). Maternal immunisation reduced the rates of low birthweight by 15% (95% CI 3-25) in both cohorts combined. The rate of small for gestational age infants was not modified by immunisation. The number of adverse events was similar regardless of immunisation status. Miscarriage occurred in three (0·2%) participants in the placebo group versus five (0·3%) in the vaccine group, stillbirth occurred in 31 (1·7%) versus 33 (1·8%), and congenital defects occurred in 18 (1·0%) versus 20 (1·1%). Five women died in the placebo group and three died in the vaccine group. The number of infant deaths at age 0-6 months was similar in each group (50 in the placebo group and 61 in the vaccine group). No serious adverse events were associated with receipt of immunisation. INTERPRETATION Year-round maternal influenza immunisation significantly reduced maternal influenza-like illness, influenza in infants, and low birthweight over the entire course of the study, indicating the strategy could be useful in subtropical regions. FUNDING Bill & Melinda Gates Foundation.
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Affiliation(s)
- Mark C Steinhoff
- Global Health Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Janet A Englund
- Seattle Children's Hospital and Research Foundation, University of Washington, Seattle, WA, USA
| | | | - Laxman Shrestha
- Tribhuvan University, Department of Pediatrics and Child Health, Institute of Medicine, Kathmandu, Nepal
| | - Jane Kuypers
- School of Medicine, University of Washington, Molecular Virology Laboratory, Seattle, WA, USA
| | - Laveta Stewart
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Helen Y Chu
- School of Medicine, University of Washington, Seattle, WA, USA; Harborview Medical Center, Seattle, WA, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Nepal Nutrition Intervention Project, Sarlahi, Kathmandu, Nepal
| | - Naoko Kozuki
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Monica McNeal
- Division of Infectious Disease, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Adriana M Reedy
- Global Health Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - James M Tielsch
- Department of Global Health Milken Institute School of Public Health, George Washington University, Washington, DC, USA
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50
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Chen C, Barry D, Khatry SK, Klasen EM, Singh M, LeClerq SC, Katz J, Tielsch JM, Mullany LC. Validation of an obstetric fistula screening questionnaire in rural Nepal: a community-based cross-sectional and nested case-control study with clinical examination. BJOG 2017; 124:955-964. [PMID: 27465702 PMCID: PMC5272910 DOI: 10.1111/1471-0528.14202] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To validate a symptom-based fistula screening questionnaire and estimate obstetric fistula (OF) prevalence in rural Nepal. DESIGN Cross-sectional and nested case-control study. SETTING Sarlahi District, Nepal. POPULATION Parous, reproductive age women. METHODS The questionnaire assessed symptoms of vesicovaginal and rectovaginal fistula (VVF and RVF, respectively), stress and urge urinary incontinence (SUI and UUI, respectively), fecal incontinence (FI), and included interviewer observations on the smell and presence of urine and/or stool. All women who screened positive for OF and a randomly selected group of women who screened negative for OF were included in a nested case-control study (one case, four normal controls, and four incontinent controls) and underwent confirmatory clinical examinations. MAIN OUTCOME MEASURES Clinically confirmed OF, and questionnaire sensitivity (Se) and specificity (Sp). RESULTS Of the 16 893 women who completed cross-sectional screening, 68 were screened-positive cases. Fifty-five (82%) screened-positive cases, 203 screened-negative normal controls, and 203 screened-incontinent controls participated in the case-control study, which confirmed one case of VVF and one case of both VVF and RVF without any false-negative cases. For VVF, the screening tool demonstrated Se 100% (95% CI 34.2-100.0%), Sp 86.9% (95% CI 83.3-89.9%), and estimated VVF prevalence as 12 per 100 000 (95% CI 3-43); for RVF, it demonstrated Se 100% (95% CI 20.7-100.0), Sp 99.8% (95% CI 98.6-100.0), and estimated RVF prevalence as 6 per 100 000 (95% CI 1-34). CONCLUSIONS The OF screening questionnaire demonstrated high sensitivity and specificity in this low-prevalence setting. TWEETABLE ABSTRACT Community-based obstetric fistula screening tool validation study, Nepal, n = 16 893: High Se, Sp & feasibility.
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Affiliation(s)
- Ccg Chen
- Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - D Barry
- Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - S K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - E M Klasen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - M Singh
- Department of Obstetrics and Gynaecology, Institute of Medicine, Kathmandu, Nepal
| | - S C LeClerq
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - J Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - J M Tielsch
- Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - L C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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