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Sanapo L, Hackethal S, Bublitz MH, Sawyer K, Garbazza C, Nagasunder A, Gonzalez M, Bourjeily G. Maternal sleep disordered breathing and offspring growth outcome: A systematic review and meta-analysis. Sleep Med Rev 2024; 73:101868. [PMID: 37956482 PMCID: PMC11000747 DOI: 10.1016/j.smrv.2023.101868] [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: 05/10/2023] [Revised: 09/22/2023] [Accepted: 10/10/2023] [Indexed: 11/15/2023]
Abstract
Sleep disordered breathing is extremely common in pregnancy and is a risk factor for maternal complications. Animal models demonstrate that intermittent hypoxia causes abnormal fetal growth. However, there are conflicting data on the association between maternal sleep disordered breathing and offspring growth in humans. We investigated this association by conducting a systematic review and meta-analysis. Sixty-three manuscripts, and total study population of 67, 671, 110 pregnant women were included. Thirty-one studies used subjective methods to define sleep disordered breathing, 24 applied objective methods and eight used international codes. Using a random effects model, habitual snoring, defined by subjective methods, and obstructive sleep apnea, diagnosed by objective methods, were associated with an increased risk for large for gestational age (OR 1.46; 95%CI 1.02-2.09 and OR 2.19; 95%CI 1.63-2.95, respectively), while obstructive sleep apnea, identified by international codes, was associated with an increased risk for small for gestational age newborns (OR 1.28; 95%CI 1.02-1.60). Our results support that maternal sleep disordered breathing is associated with offspring growth, with differences related to the type of disorder and diagnostic methods used. Future studies should investigate underlying mechanisms and whether treatment of sleep disordered breathing ameliorates the neonatal growth.
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Affiliation(s)
- Laura Sanapo
- Women's Medicine Collaborative, The Miriam Hospital, Providence, RI, USA; Department of Medicine, Warren Alpert School of Medicine at Brown University, Providence, RI, USA.
| | - Sandra Hackethal
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Civic Hospital of Lugano, Lugano, Switzerland
| | - Margaret H Bublitz
- Women's Medicine Collaborative, The Miriam Hospital, Providence, RI, USA; Department of Medicine, Warren Alpert School of Medicine at Brown University, Providence, RI, USA; Department of Psychiatry and Human Behavior, Warren Alpert School of Medicine at Brown University, Providence, Rhode Island, USA
| | | | - Corrado Garbazza
- Centre for Chronobiology, University of Basel, Basel, Switzerland; Research Cluster Molecular and Cognitive Neurosciences, University of Basel, Basel, Switzerland
| | | | - Marian Gonzalez
- Women's Medicine Collaborative, The Miriam Hospital, Providence, RI, USA
| | - Ghada Bourjeily
- Women's Medicine Collaborative, The Miriam Hospital, Providence, RI, USA; Department of Medicine, Warren Alpert School of Medicine at Brown University, Providence, RI, USA; Department of Health Services, Policy and Practice, School of Public Health at Brown University, Providence, Rhode Island, USA
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Teivaanmäki T, Hallamaa L, Rantakari K, Andersson S, Leskinen M. Time of Delivery Contributes to Mortality and Morbidity in Preterm Infants. Neonatology 2023; 120:741-750. [PMID: 37757770 DOI: 10.1159/000533876] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023]
Abstract
INTRODUCTION Knowledge about the time of birth and its impact on premature infants is essential when planning perinatal and neonatal care and resource allocation. We studied the time of birth and its contribution to early death and morbidity in preterm infants. METHODS We explored the time and mode of birth of infants with birthweight of <1,500 g and gestational age of <32+0/7 weeks. Additionally, we divided the infants into three groups stratified by their time of birth, i.e., during office hours, evening, and nighttime and assessed associations between these groups and mortality and morbidity. RESULTS The study comprised 1,610 infants of whom 156 (10%) died during their stay in neonatal intensive care unit. The highest number of deliveries occurred on Fridays (21%, n = 341/1,610), primarily due to high number of cesarean sections. Deliveries peaked on workdays at 10 a.m. and 2:00 p.m. Mortality was lowest among infants born on Fridays (6%, n = 21/341) and highest on Mondays (13%, n = 28/218). Intraventricular hemorrhage (IVH) (odds ratio [OR]: 1.50, 95% CI: 1.10-2.03, p = 0.010) and necrotizing enterocolitis (NEC) (OR: 2.11, 95% CI: 1.13-3.91, p = 0.019) were more common among infants born at nighttime. These associations attenuated after adjustment for covariates. CONCLUSION Deliveries of premature infants peaked on Fridays. Mortality was lower among those born on Fridays, compared with Mondays. Many low-risk deliveries on Fridays may decrease, and the tendency to postpone high-risk deliveries to Mondays, increase the proportional risk of mortality. Indication of higher risk of IVH and NEC among infants born during nighttime may be due to different patient population.
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Affiliation(s)
- Tiina Teivaanmäki
- Children's Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Lotta Hallamaa
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Krista Rantakari
- Children's Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Sture Andersson
- Children's Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Markus Leskinen
- Children's Hospital, Pediatric Research Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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Hersey AE, Wagner SM, Gupta M, Chang K, Yang L, Chauhan SP. Utilizing International Classification of Diseases Codes to Identify Shoulder Dystocia and Neonatal Brachial Plexus Injury. Pediatr Neurol 2023; 144:115-118. [PMID: 37244217 DOI: 10.1016/j.pediatrneurol.2023.04.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND The utilization of International Classification of Diseases, Ninth or Tenth Revision, (ICD-9/10) coding to identify the incidence of disease is frequently performed in medical research. This study attempts to assess the validity of using ICD-9/10 codes to identify patients with shoulder dystocia (SD) with concurrent neonatal brachial plexus palsy (NBPP). METHODS This retrospective cohort study examined patients evaluated at the University of Michigan Brachial Plexus and Peripheral Nerve Program (UM-BP/PN) from 2004 to 2018. We reported the percentage of patients with reported NBPP ICD-9/10 and SD ICD-9/10 discharged at birth who were later diagnosed with NBPP by a specialty clinic by interdisciplinary faculty and staff utilizing physical evaluations and ancillary testing such as such as electrodiagnostics and imaging. The relationship of reported NBPP ICD-9/10, SD ICD-9/10, extent of NBPP nerve involvement, and NBPP persistence at age two years were examined via chi-square or Fischer exact test. RESULTS Of the 51 mother-infant dyads with complete birth discharge records evaluated at the UM-BP/PN, 26 (51%) were discharged without an ICD-9/10 code documenting NBPP; of these 26 patients, only four had ICD-9/10 documentation of SD at discharge, which left 22 patients with no ICD-9/10 code documentation of either SD or NBPP (43%). Patients with pan-plexopathy were more likely to be discharged with an NBBP ICD-9/10 code than those infants with upper nerve involvement (77% vs 39%, P < 0.02). CONCLUSION Use of ICD-9/10 codes for the identification of NBPP appears to undercount the true incidence. This underestimation is more pronounced for milder forms of NBPP.
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Affiliation(s)
- Alicia E Hersey
- Department of Obstetrics and Gynecology, Alpert Medical School, Brown University, Providence, Rhode Island
| | - Stephen M Wagner
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts.
| | - Megha Gupta
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
| | - Kate Chang
- Department of Neurologic Surgery, University of Michigan, Ann Arbor, Michigan
| | - Lynda Yang
- Department of Neurologic Surgery, University of Michigan, Ann Arbor, Michigan
| | - Suneet P Chauhan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
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Chomistek AK, Phiri K, Doherty MC, Calderbank JF, Chiuve SE, McIlroy BH, Snabes MC, Enger C, Seeger JD. Development and Validation of ICD-10-CM-based Algorithms for Date of Last Menstrual Period, Pregnancy Outcomes, and Infant Outcomes. Drug Saf 2023; 46:209-222. [PMID: 36656445 PMCID: PMC9981491 DOI: 10.1007/s40264-022-01261-5] [Citation(s) in RCA: 2] [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] [Accepted: 11/22/2022] [Indexed: 01/20/2023]
Abstract
INTRODUCTION AND OBJECTIVE Validation studies of algorithms for pregnancy outcomes based on International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) codes are important for conducting drug safety research using administrative claims databases. To facilitate the conduct of pregnancy safety studies, this exploratory study aimed to develop and validate ICD-10-CM-based claims algorithms for date of last menstrual period (LMP) and pregnancy outcomes using medical records. METHODS Using a mother-infant-linked claims database, the study included women with a pregnancy between 2016-2017 and their infants. Claims-based algorithms for LMP date utilized codes for gestational age (Z3A codes). The primary outcomes were major congenital malformations (MCMs) and spontaneous abortion; additional secondary outcomes were also evaluated. Each pregnancy outcome was identified using a claims-based simple algorithm, defined as presence of ≥ 1 claim for the outcome. Positive predictive values (PPV) and 95% confidence intervals (CI) were calculated. RESULTS Overall, 586 medical records were sought and 365 (62.3%) were adjudicated, including 125 records each for MCMs and spontaneous abortion. Last menstrual period date was validated among maternal charts procured for pregnancy outcomes and fewer charts were adjudicated for the secondary outcomes. The median difference in days between LMP date based on Z3A codes and adjudicated LMP date was 4.0 (interquartile range: 2.0-10.0). The PPV of the simple algorithm for spontaneous abortion was 84.7% (95% CI 78.3, 91.2). The PPV for the MCM algorithm was < 70%. The algorithms for the secondary outcomes pre-eclampsia, premature delivery, and low birthweight performed well, with PPVs > 70%. CONCLUSIONS The ICD-10-CM claims-based algorithm for spontaneous abortion performed well and may be used in pregnancy studies. Further algorithm refinement for MCMs is needed. The algorithms for LMP date and the secondary outcomes would benefit from additional validation in a larger sample.
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Affiliation(s)
| | - Kelesitse Phiri
- Optum, 1325 Boylston Street, 11th Floor, Boston, MA, 02215, USA
| | | | | | | | | | | | - Cheryl Enger
- Optum, 1325 Boylston Street, 11th Floor, Boston, MA, 02215, USA
| | - John D Seeger
- Optum, 1325 Boylston Street, 11th Floor, Boston, MA, 02215, USA
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Wang X, Zimmermann EM, Goodin AJ, Brown J, Winterstein AG. Risk of preterm delivery and small for gestational age among women with inflammatory bowel disease using tumor necrosis factor alpha inhibitors during pregnancy. Am J Obstet Gynecol 2022; 228:474-476. [PMID: 36565900 DOI: 10.1016/j.ajog.2022.12.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 12/11/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Xi Wang
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL
| | - Ellen M Zimmermann
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Gastroenterology, University of Florida, Gainesville, FL
| | - Amie J Goodin
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL; Center for Drug Evaluation and Safety, University of Florida, Gainesville, FL
| | - Joshua Brown
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL; Center for Drug Evaluation and Safety, University of Florida, Gainesville, FL
| | - Almut G Winterstein
- Department of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL; Center for Drug Evaluation and Safety, University of Florida, Gainesville, FL; Department of Epidemiology, Colleges of Medicine and Public Health and Health Professions, University of Florida, Gainesville, FL.
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Esposito DB, Bateman B, Werler M, Straub L, Mogun H, Hernandez-Diaz S, Huybrechts K. Ischemic Placental Disease, Preterm Delivery, and Their Association With Opioid Use During Pregnancy. Am J Epidemiol 2022; 191:759-768. [PMID: 34165143 DOI: 10.1093/aje/kwab132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/22/2021] [Accepted: 04/29/2021] [Indexed: 01/01/2023] Open
Abstract
Opioids affect placental development and function in animal models, but human data on their association with ischemic placental disease are limited. Using a cohort of pregnant women in the US nationwide Medicaid Analytic eXtract (2000-2014), we compared women with ≥2 opioid dispensings in pregnancy with unexposed women. Given an uncertain etiologically relevant window, we assessed exposure occurring in early pregnancy, late and not early pregnancy, and both early and late pregnancy. For placental abruption, preterm delivery, small for gestational age (SGA), and preeclampsia, we estimated adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) using Cox proportional hazard models adjusting for demographic factors, indications/comorbidities, and medications. Among 1,833,871 eligible pregnancies, ≥2 opioid dispensings were filled in 6.5%. We observed an early exposure aHR of 1.34 (95% CI: 1.26, 1.43) for placental abruption, 1.21 (95% CI: 1.18, 1.23) for preterm delivery, 1.13 (95% CI: 1.09, 1.17) for SGA, and 0.95 (0.91, 0.98) for preeclampsia. Estimates for late exposure were attenuated. Early and late exposure was associated with higher aHRs for placental abruption, 1.62 (95% CI: 1.47, 1.78); preterm delivery, 1.37 (95% CI: 1.33, 1.42); and SGA, 1.26 (95% CI: 1.19, 1.33); but not preeclampsia, 0.99 (95% CI: 0.93, 1.05). Prescription opioids may modestly increase risk of placental abruption, preterm birth and SGA, but they do not appear to be associated with preeclampsia.
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Mohamed NS, Castrodad IMD, Etcheson JI, Sodhi N, Remily EA, Wilkie WA, Mont MA, Delanois RE. Inpatient dislocation after primary total hip arthroplasty: incidence and associated patient and hospital factors. Hip Int 2022; 32:152-159. [PMID: 32716660 DOI: 10.1177/1120700020940968] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Inpatient dislocation following total hip arthroplasty (THA) may incur substantial financial penalties for hospitals in the United States. However, limited studies report on current incidence and variability of dislocations. We utilised a large national database to evaluate inpatient hip dislocation trends regarding: (1) yearly incidences; (2) lengths of stay (LOS); (3) demographic factors; and (4) hospital metrics. METHODS The National Inpatient Sample was queried from 2012 to2016 for primary THA patients (n = 1,610,155), identifying 2490 inpatient dislocations. Various patient demographics and hospital characteristics were assessed. Multivariate regression analyses were conducted to identify dislocation risk factors. RESULTS Dislocation rates increased from 0.11% in 2012 to 0.18% in 2016 (p < 0.001). Dislocated patients experienced significantly longer LOS (p < 0.001). Patient demographic factors associated with dislocation were sex, race, Medicaid insurance, alcohol use disorder, psychosis, hemiparesis/hemiplegia, chronic renal failure, and obesity. Spinal fusion was not associated with inpatient dislocation. Dislocations were likeliest in the South and least likely in teaching hospitals. CONCLUSION Inpatient dislocation has increased in recent years. Optimised management and recognition of the patient and hospital factors outlined in this study may help decrease inpatient dislocation risks following THA, thus avoiding hospital reimbursement penalties for this preventable complication.
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Affiliation(s)
- Nequesha S Mohamed
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
| | - Iciar M Dávila Castrodad
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
| | - Jennifer I Etcheson
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
| | - Nipun Sodhi
- Department of Orthopaedic Surgery, Lenox Hill Hospital, New York, NY, USA
| | - Ethan A Remily
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
| | - Wayne A Wilkie
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
| | - Michael A Mont
- Department of Orthopaedic Surgery, Lenox Hill Hospital, New York, NY, USA
| | - Ronald E Delanois
- Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MA, USA
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Yland JJ, Chiu YH, Rinaudo P, Hsu J, Hernán MA, Hernández-Díaz S. Emulating a target trial of the comparative effectiveness of clomiphene citrate and letrozole for ovulation induction. Hum Reprod 2022; 37:793-805. [PMID: 35048945 PMCID: PMC8971650 DOI: 10.1093/humrep/deac005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/01/2021] [Indexed: 01/22/2023] Open
Abstract
STUDY QUESTION What are the comparative pregnancy outcomes in women who receive up to six consecutive cycles of ovulation induction with letrozole versus clomiphene citrate? SUMMARY ANSWER The risks of pregnancy, livebirth, multiple gestation, preterm birth, neonatal intensive care unit (NICU) admission and congenital malformations were higher for letrozole compared with clomiphene in participants with polycystic ovarian syndrome (PCOS), though no treatment differences were observed in those with unexplained infertility. WHAT IS KNOWN ALREADY Randomized trials have reported higher pregnancy and livebirth rates for letrozole versus clomiphene among individuals with PCOS, but no differences among those with unexplained infertility. None of these trials were designed to study maternal or neonatal complications. STUDY DESIGN, SIZE, DURATION We emulated a hypothetical trial of the comparative effectiveness of letrozole versus clomiphene citrate for ovulation induction among all women, then stratified by PCOS and unexplained infertility status. We used real-world data from a large healthcare claims database in the USA (2011-2015). PARTICIPANTS/MATERIALS, SETTING, METHODS We analyzed data from 18 120 women who initiated letrozole and 49 647 women who initiated clomiphene during 2011-2014, and who were aged 18-45 years with no history of diabetes, thyroid disease, liver disease or breast cancer and had no fertility treatments for 3 months before trial initiation. The treatment strategies were clomiphene citrate or letrozole for six consecutive cycles. The outcomes were pregnancy, livebirth, multiple gestation, preterm birth, small for gestational age (SGA), NICU admission and major congenital malformations. We estimated the probability of each outcome under each strategy via pooled logistic regression and used standardization to adjust for confounding and selection bias due to loss to follow-up. MAIN RESULTS AND THE ROLE OF CHANCE The estimated probabilities of pregnancy, livebirth and neonatal outcomes were similar under each strategy, both overall and among individuals with unexplained infertility. Among women with PCOS, the probability of pregnancy was 43% for letrozole vs 37% for clomiphene (risk difference [RD] = 6.0%; 95% CI: 4.4, 7.7) in the intention-to-treat analyses. The corresponding probability of livebirth was 32% vs 29% (RD = 3.1%; 95% CI: 1.5, 4.8). In per protocol analyses, the risk of multiple gestation was 19% vs 9%, the risk of preterm birth was 20% vs 15%, the risk of SGA was 5% vs 3%, the risk of NICU admission was 22% vs 16% and the risk of congenital malformation was 8% vs 2% among those with a livebirth. LIMITATIONS, REASONS FOR CAUTION We cannot completely rule out the possibility of residual confounding by body mass index or duration of infertility. However, we adjusted for proxies identified in administrative data and results did not change. WIDER IMPLICATIONS OF THE FINDINGS Our findings suggest that for women with unexplained infertility, the two treatments result in comparable probabilities of a livebirth. For women with PCOS, letrozole appears slightly more effective for attaining a livebirth. Neonatal outcomes were similar for the two treatments among women with unexplained infertility; we did not confirm the hypothesized higher risk of adverse neonatal outcomes for clomiphene versus letrozole. The risks of adverse neonatal outcomes were slightly greater among women with PCOS who were treated with letrozole versus clomiphene. It is likely that these effects are partially mediated through an increased risk of multiple gestation among women who received letrozole. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the National Institute of Child Health and Human Development (R01HD088393). Y.-H.C. reports grants from the American Heart Association (834106) and NIH (R01HD097778). P.R. reports grants from the National Institutes of Health. J.H. reports grants from the National Institutes of Health, the Agency for Healthcare Research and Quality, and the California Health Care Foundation during the conduct of the study; and consulting for several health care delivery organizations including Cambridge Health Alliance, Columbia University, University of Southern California, Community Servings, and the Delta Health Alliance. S.H.-D. reports grants from the National Institutes of Health and the US Food and Drug Administration during the conduct of the study; grants to her institution from Takeda outside the submitted work; consulting for UCB (biopharmaceutical company) and Roche; and being an adviser for the Antipsychotics Pregnancy Registry and epidemiologist for the North American Antiepileptics Pregnancy Registry, both at Massachusetts General Hospital. M.A.H. reports grants from the National Institutes of Health and the U.S. Veterans Administration during the conduct of the study; being a consultant for Cytel; and being an adviser for ProPublica. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Jennifer J Yland
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA,Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA,Correspondence address. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA. E-mail: https://orcid.org/0000-0001-7870-8971
| | - Yu-Han Chiu
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA,CAUSALab, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Paolo Rinaudo
- Center for Reproductive Health, University of California San Francisco, San Francisco, CA, USA
| | - John Hsu
- Mongan Institute, Massachusetts General Hospital, Boston, MA, USA,Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - Miguel A Hernán
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA,CAUSALab, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Sonia Hernández-Díaz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA,CAUSALab, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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9
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Lutgendorf MA, Abramovitz LM, Bukowinski AT, Gumbs GR, Conlin AMS, Hall C. Pregnancy and posttraumatic stress disorder: associations with infant outcomes and prenatal care utilization. J Matern Fetal Neonatal Med 2021; 35:9053-9060. [PMID: 34886747 DOI: 10.1080/14767058.2021.2013796] [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] [Indexed: 10/19/2022]
Abstract
BACKGROUND Posttraumatic stress disorder (PTSD) affects 3.6-9.7% of women, and has been associated with adverse outcomes in pregnancy; however, associations with prenatal care (PNC) utilization are not clear. OBJECTIVE To evaluate associations of PTSD in pregnancy with PNC utilization and adverse infant outcomes in an active-duty military population (a population with universal health insurance). METHODS This was a retrospective cohort study of pregnant active-duty service members in Department of Defense Birth and Infant Health Research program data from 2007 to 2014. Administrative medical encounter data were used to define PTSD cases and outcomes of interest. Descriptive statistics and multivariable log-binomial regression compared PNC utilization and adverse infant outcomes (preterm birth, small for gestational age [SGA], major birth defects) among service members with current PTSD (defined as PTSD in the year prior to pregnancy or during pregnancy) to those without current PTSD. RESULTS Of the 103,221 singleton live births identified, 1657 (1.6%) were born to active-duty service members diagnosed with current PTSD. Service members with PTSD were more likely to initiate PNC in the first trimester (93.5% vs. 90.2%) and score adequate plus on the Adequacy of Prenatal Care Utilization Index (63.2% vs. 40.0%) compared to service members without PTSD. PTSD case status was not associated with preterm birth, SGA, or major birth defects, regardless of the adjustment set used (fully adjusted RR 0.96, 95% CI 0.82-1.13; RR 1.08, 95% CI 0.79-1.48; and RR 1.03, 95% CI 0.79-1.34, respectively). CONCLUSION For pregnant service members with current PTSD, no associations with adverse infant outcomes were noted, and these patients initiated care earlier and had higher PNC utilization scores compared to pregnant service members without current PTSD. Universal health care coverage and utilization of PNC in this population may mitigate adverse pregnancy outcomes observed in civilian populations of patients with PTSD.
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Affiliation(s)
- Monica A Lutgendorf
- Department of Gynecologic Surgery & Obstetrics, Naval Medical Center San Diego, San Diego, CA, USA
| | - Lisa M Abramovitz
- Leidos, Inc, San Diego, CA, USA.,Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Anna T Bukowinski
- Leidos, Inc, San Diego, CA, USA.,Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Gia R Gumbs
- Leidos, Inc, San Diego, CA, USA.,Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Ava Marie S Conlin
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Clinton Hall
- Leidos, Inc, San Diego, CA, USA.,Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
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10
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Straub L, Bateman BT, Hernandez-Diaz S, York C, Zhu Y, Suarez EA, Lester B, Gonzalez L, Hanson R, Hildebrandt C, Homsi J, Kang D, Lee KWK, Lee Z, Li L, Longacre M, Shah N, Tukan N, Wallace F, Williams C, Zerriny S, Mogun H, Huybrechts KF. Validity of claims-based algorithms to identify neurodevelopmental disorders in children. Pharmacoepidemiol Drug Saf 2021; 30:1635-1642. [PMID: 34623720 DOI: 10.1002/pds.5369] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/13/2021] [Accepted: 09/17/2021] [Indexed: 01/16/2023]
Abstract
PURPOSE To validate healthcare claim-based algorithms for neurodevelopmental disorders (NDD) in children using medical records as the reference. METHODS Using a clinical data warehouse of patients receiving outpatient or inpatient care at two hospitals in Boston, we identified children (≤14 years between 2010 and 2014) with at least one of the following NDDs according to claims-based algorithms: autism spectrum disorder/pervasive developmental disorder (ASD), attention deficit disorder/other hyperkinetic syndromes of childhood (ADHD), learning disability, speech/language disorder, developmental coordination disorder (DCD), intellectual disability, and behavioral disorder. Fifty cases per outcome were randomly sampled and their medical records were independently reviewed by two physicians to adjudicate the outcome presence. Positive predictive values (PPVs) and 95% confidence intervals (CIs) were calculated. RESULTS PPVs were 94% (95% CI, 83%-99%) for ASD, 88% (76%-95%) for ADHD, 98% (89%-100%) for learning disability, 98% (89%-100%) for speech/language disorder, 82% (69%-91%) for intellectual disability, and 92% (81%-98%) for behavioral disorder. A total of 19 of the 50 algorithm-based cases of DCD were confirmed as severe coordination disorders with functional impairment, with a PPV of 38% (25%-53%). Among the 31 false-positive cases of DCD were 7 children with coordination deficits that did not persist throughout childhood, 7 with visual-motor integration deficits, 12 with coordination issues due to an underlying medical condition and 5 with ADHD and at least one other severe NDD. CONCLUSIONS PPVs were generally high (range: 82%-98%), suggesting that claims-based algorithms can be used to study NDDs. For DCD, additional criteria are needed to improve the classification of true cases.
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Affiliation(s)
- Loreen Straub
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Brian T Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sonia Hernandez-Diaz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Cassandra York
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Yanmin Zhu
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Elizabeth A Suarez
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Barry Lester
- Center for the Study of Children at Risk, Department of Pediatrics, Alpert Medical School of Brown University, and Women and Infants Hospital, Providence, Rhode Island, USA
| | - Lyndon Gonzalez
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ryan Hanson
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anesthesiology and Pain Management, Cleveland Clinic, Cleveland, Ohio, USA
| | - Clara Hildebrandt
- Department of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Joseph Homsi
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel Kang
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Ken W K Lee
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Zachary Lee
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Linda Li
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, California, USA
| | - Mckenna Longacre
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Nidhi Shah
- Department of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Natalie Tukan
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Frances Wallace
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Christina Williams
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Pediatrics, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Salim Zerriny
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Helen Mogun
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Krista F Huybrechts
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
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11
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Lane-Cordova AD, Wilcox S, Fernhall B, Liu J. Agreement between blood pressure from research study visits versus electronic medical records and associations with hypertensive disorder diagnoses in pregnant women with overweight/obesity. Blood Press Monit 2021; 26:341-347. [PMID: 34001756 PMCID: PMC8419020 DOI: 10.1097/mbp.0000000000000542] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Blood pressure (BP) abstracted from electronic medical records (EMR) is moderately correlated to BP in nonpregnant adults with limited agreement. Little is known about the agreement of research versus EMR BP measured during pregnancy or associations of EMR BP with hypertensive disorder of pregnancy (HDP) diagnoses. METHODS BP was measured according to guidelines at in-person research study visits in 214 women with prepregnancy overweight or obesity (44.4% African American, mean age = 29.8 ± 4.8 years) at weeks 16 and 32 of pregnancy. Clinic BP readings that occurred within 1 week of the study visits were abstracted from the EMR. We assessed correlations between sources using Pearson's coefficients; the agreement was evaluated with Bland-Altman plots. We compared differences in the proportion of women with an HDP diagnosis in the EMR between women with versus without a hypertensive EMR BP measurement. RESULTS SBP and DBP from study visits and the EMR were modestly moderately correlated at both time points; 0.20 < r < 0.44; P < 0.05 for all. The average mean difference was 10.5 mmHg for SBP and <1 mmHg for DBP in early and 7.3 mmHg for SBP and -1.7 mmHg for DBP in late pregnancy. Women with at least one hypertensive BP reading in the EMR were more likely to have an HDP diagnosis recorded in the EMR; 43.5 versus 3.3%; P < 0.01. CONCLUSION EMR SBP was higher but moderately correlated with research quality BP in early and late pregnancy. Women with a hypertensive EMR BP measurement were more likely to have an HDP diagnosis in the EMR.
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Affiliation(s)
- Abbi D Lane-Cordova
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina
| | - Sara Wilcox
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina
| | - Bo Fernhall
- Department of Kinesiology and Nutrition, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Jihong Liu
- Department of Epidemiology and Biostatistics, Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA
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12
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Speer RR, Schaefer EW, Aholoukpe M, Leslie DL, Gandhi CK. Trends in Costs of Birth Hospitalization and Readmissions for Late Preterm Infants. Children (Basel) 2021; 8:127. [PMID: 33578773 DOI: 10.3390/children8020127] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 11/17/2022]
Abstract
Background: The objective is to study previously unexplored trends of birth hospitalization and readmission costs for late preterm infants (LPIs) in the United States between 2005 and 2016. Methods: We conducted a retrospective analysis of claims data to study healthcare costs of birth hospitalization and readmissions for LPIs compared to term infants (TIs) using a large private insurance database. We used a generalized linear regression model to study birth hospitalization and readmission costs. Results: A total of 2,123,143 infants were examined (93.2% TIs; 6.8% LPIs). The proportion of LPIs requiring readmission was 4.2% compared to 2.1% of TIs, (p < 0.001). The readmission rate for TIs decreased during the study period. LPIs had a higher mean cost of birth hospitalization (25,700 vs. 3300 USD; p < 0.001) and readmissions (25,800 vs. 14,300 USD; p < 0.001). For LPIs, birth hospitalization costs increased from 2007 to 2013, and decreased since 2014. Conversely, birth hospitalization costs of TIs steadily increased since 2005. The West region showed higher birth hospitalization costs for LPIs. Conclusions: LPIs continue to have a higher cost of birth hospitalization and readmission compared to TIs, but these costs have decreased since 2014. Standardization of birth hospitalization care for LPIs may reduce costs and improve quality of care and outcomes.
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13
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Hall C, Bukowinski AT, McGill AL, You WB, Gumbs GR, Wells NY, Conlin AMS. Racial Disparities in Prenatal Care Utilization and Infant Small for Gestational Age Among Active Duty US Military Women. Matern Child Health J 2020; 24:885-93. [PMID: 32356127 DOI: 10.1007/s10995-020-02941-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To examine racial disparities in prenatal care (PNC) utilization and infant small for gestational age (SGA) among active duty US military women, a population with equal access to health care and known socioeconomic status. METHODS Department of Defense Birth and Infant Health Research program data identified active duty women with singleton live births from January 2003 through August 2015. Administrative claims data were used to define PNC utilization and infant SGA, and log-binomial regression models estimated associations with race/ethnicity. To examine whether associations between maternal race/ethnicity and infant SGA were subject to effect measure modification, respective analyses were stratified by demographic and health characteristics. RESULTS Overall, 12.2% of non-Hispanic White women initiated PNC after the first trimester, compared with 14.8% of American Indian/Alaska Native, 15.1% of Asian/Pacific Islander, 14.2% of non-Hispanic Black, and 13.0% of Hispanic women. Infant SGA prevalence was 2.4% and 1.6% among non-Hispanic Black and White women, respectively (aRR 1.52, 95% CI 1.40-1.64). This disparity persisted across stratified analyses, particularly among non-Hispanic Black versus White women with a preeclampsia or hypertension diagnosis in pregnancy (RR 1.96, 95% CI 1.67-2.29) and those aged 35 + years at infant birth (RR 2.04, 95% CI 1.56-2.67). CONCLUSIONS FOR PRACTICE In multiple assessments of PNC utilization and infant SGA, non-Hispanic Black military women had consistently worse outcomes than their non-Hispanic White counterparts. This suggests that equal access to health care does not eliminate racial disparities in outcomes or utilization; additional research is needed to elucidate the underlying etiology of these disparities.
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Corrao G, Rea F, Franchi M, Beccalli B, Locatelli A, Cantarutti A. Warning of Immortal Time Bias When Studying Drug Safety in Pregnancy: Application to Late Use of Antibiotics and Preterm Delivery. Int J Environ Res Public Health 2020; 17:E6465. [PMID: 32899455 DOI: 10.3390/ijerph17186465] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/22/2022]
Abstract
This study aimed to illustrate and account for immortal time bias in pregnancy observational investigations, using the relationship between late use of antibiotics and risk of preterm birth as an example. We conducted a population-based cohort study including 549,082 deliveries between 2007 and 2017 in Lombardy, Italy. We evaluated the risk of preterm births, low birth weight, small for gestational age, and low Apgar score associated with antibiotic dispensing during the third trimester of pregnancy. Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CI) of the outcomes, considering the use of antibiotics as time-fixed (with biased classification of exposure person-time) and time-varying (with proper classification of exposure person-time) exposure. There were 23,638 (4.3%) premature deliveries. There was no association between time-fixed exposure to antibiotics and preterm delivery (adjusted HR 0.96; 95% CI 0.92 to 1.01) but an increased risk of preterm birth when time-varying exposure to antibiotics was considered (1.27; 1.21 to 1.34). The same trend was found for low birth weight and low Apgar score. Immortal time bias is a common and sneaky trap in observational studies involving exposure in late pregnancy. This bias could be easily avoided with suitable design and analysis.
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He M, Huybrechts KF, Dejene SZ, Straub L, Bartels D, Burns S, Combs DJ, Cottral J, Gray KJ, Manning‐Geist BL, Mogun H, Reimers RM, Hernandez‐Diaz S, Bateman BT. Validation of algorithms to identify adverse perinatal outcomes in the Medicaid Analytic Extract database. Pharmacoepidemiol Drug Saf 2020; 29:419-426. [DOI: 10.1002/pds.4967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 01/24/2020] [Accepted: 01/27/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Mengdong He
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Krista F. Huybrechts
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Sara Z. Dejene
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Loreen Straub
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Devan Bartels
- Department of Anesthesia and Pain MedicineMassachusetts General Hospital and Harvard Medical School Boston MA USA
| | - Stacey Burns
- Department of Anesthesiology, Perioperative and Pain MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - David J. Combs
- Department of Anesthesia and Pain MedicineMassachusetts General Hospital and Harvard Medical School Boston MA USA
| | - Jennifer Cottral
- Department of Anesthesia and Pain MedicineMassachusetts General Hospital and Harvard Medical School Boston MA USA
| | - Kathryn J. Gray
- Department of Obstetrics and GynecologyBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Beryl L. Manning‐Geist
- Department of Obstetrics and GynecologyBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Helen Mogun
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Rebecca M. Reimers
- Department of Obstetrics and GynecologyBrigham and Women's Hospital and Harvard Medical School Boston MA USA
| | - Sonia Hernandez‐Diaz
- Department of EpidemiologyHarvard T.H. Chan School of Public Health Boston MA USA
| | - Brian T. Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
- Department of Anesthesiology, Perioperative and Pain MedicineBrigham and Women's Hospital and Harvard Medical School Boston MA USA
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16
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Yland JJ, Bateman BT, Huybrechts KF, Brill G, Schatz MX, Wurst KE, Hernández-Díaz S. Perinatal Outcomes Associated with Maternal Asthma and Its Severity and Control During Pregnancy. J Allergy Clin Immunol Pract 2020; 8:1928-1937.e3. [PMID: 31981730 DOI: 10.1016/j.jaip.2020.01.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND Estimates of the effects of maternal asthma on pregnancy outcomes are inconsistent across studies, possibly because of differences in exposure definition. OBJECTIVE To evaluate the risk of adverse perinatal outcomes associated with maternal asthma diagnosis, severity, and control in a large, nationally representative cohort. METHODS This study was conducted within the IBM Health MarketScan Commercial Claims and Encounters Database (2011-2015) and the Medicaid Analytic eXtract database (2000-2014). Asthma was identified by diagnosis and treatment codes, severity was based on medications dispensed, and control was based on short-acting β-agonist dispensations and exacerbations. We estimated the relative risks (RRs) of stillbirth, spontaneous abortion, preterm birth, small for gestational age (SGA), neonatal intensive care unit (NICU) admission, and congenital malformations, comparing pregnancies with differing asthma disease status. RESULTS We identified 29,882 pregnancies complicated by asthma in the MarketScan database and 160,638 in the Medicaid Analytic eXtract database. We observed no consistent associations between asthma diagnosis, severity, or control, and stillbirth, abortions, or malformations. However, we observed increased risks of prematurity, SGA, and NICU admission among women with asthma compared with those without asthma. Compared with women with well-controlled asthma, women with poor control late in pregnancy had an increased risk of preterm birth (relative risk, 1.39; 95% CI, 1.32-1.46) and NICU admission (relative risk, 1.26; 95% CI, 1.17-1.35). More severe asthma was associated with SGA (relative risk, 1.18; 95% CI, 1.07-1.30). CONCLUSIONS We did not observe an increased risk of pregnancy losses or malformations among women with asthma. However, we found an association between asthma severity and SGA, and between exacerbations late in pregnancy and preterm delivery and NICU admission.
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Affiliation(s)
- Jennifer J Yland
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Mass.
| | - Brian T Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass; Department of Anesthesiology, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
| | - Krista F Huybrechts
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Gregory Brill
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Michael X Schatz
- Department of Allergy, Kaiser Permanente Medical Center, San Diego, Calif
| | - Keele E Wurst
- Department of Epidemiology and Real-World Evidence, GSK, Collegeville, Pa
| | - Sonia Hernández-Díaz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Mass
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17
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Gutman JR, Hall C, Khodr ZG, Bukowinski AT, Gumbs GR, Conlin AMS, Wells NY, Tan KR. Atovaquone-proguanil exposure in pregnancy and risk for adverse fetal and infant outcomes: A retrospective analysis. Travel Med Infect Dis 2019; 32:101519. [PMID: 31747537 PMCID: PMC11001272 DOI: 10.1016/j.tmaid.2019.101519] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/08/2019] [Accepted: 11/09/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Malaria in pregnancy can cause severe maternal and fetal complications. Chloroquine (CQ) and mefloquine (MQ) are recommended for chemoprophylaxis in pregnancy, but are not always suitable. Atovaquone-proguanil (AP) might be a viable option for malaria prevention in pregnancy, but more safety data are needed. METHODS Data for pregnancies and live births among active duty military women, 2003-2014, from the Department of Defense Birth and Infant Health Research program were linked with pharmacy data to determine antimalarial exposure. Multivariable Cox and logistic regression models were used to assess the relationship of antimalarial exposure with fetal and infant outcomes, respectively. RESULTS Among 198,164 pregnancies, 50 were exposed to AP, 156 to MQ, and 131 to CQ. Overall, 17.6% of unexposed pregnancies and 28.0%, 16.0%, and 6.1% of pregnancies exposed to AP, MQ, and CQ, respectively, ended in fetal loss (spontaneous abortion or stillbirth) (adjusted hazard ratios [aHR] = 1.46, 95% confidence interval [CI] 0.87-2.46; aHR = 1.06, 95% CI 0.72-1.57; and aHR = 0.47, 95% CI 0.24-0.94, respectively). CONCLUSIONS The small number of AP exposed pregnancies highlights the difficulty in assessing safety. While definitive conclusions are not possible, these data suggest further research of AP exposure in pregnancy and fetal loss is warranted. TWITTER LINE More research on fetal loss following atovaquone-proguanil exposure in pregnancy is warranted.
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Affiliation(s)
- Julie R Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Clinton Hall
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA; Leidos Inc, San Diego, CA, USA
| | - Zeina G Khodr
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA; Leidos Inc, San Diego, CA, USA
| | - Anna T Bukowinski
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA; Leidos Inc, San Diego, CA, USA
| | - Gia R Gumbs
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA; Leidos Inc, San Diego, CA, USA
| | - Ava Marie S Conlin
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Natalie Y Wells
- Deployment Health Research Department, Naval Health Research Center, San Diego, CA, USA
| | - Kathrine R Tan
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
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18
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Nolan S, Czuzoj-Shulman N, Abenhaim HA. Obstetrical and newborn outcomes among women with acute leukemias in pregnancy: a population-based study. J Matern Fetal Neonatal Med 2019; 33:3514-3520. [PMID: 30773954 DOI: 10.1080/14767058.2019.1579188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose: Acute leukemias (ALs) are rare but aggressive malignancies. The goal of our study was to determine the incidence, obstetrical, and newborn outcomes of ALs in pregnancy.Materials and methods: We performed a retrospective population-based cohort study on all births reported in the Health-Care Cost and Utilization Project-Nationwide Inpatient Sample between 1999 and 2014. We calculated the incidence of ALs in pregnancy and conducted multivariate logistic regression to obtain adjusted odds ratios for various maternal and newborn outcomes among this population compared to a nonaffected one.Results: We identified 291 maternal cases of ALs among 14,513,587 births, yielding an incidence of 2.01 per 100,000 births over the 15-year study period. There were approximately twice as many diagnoses of acute myeloid leukemia (AML) as compared to acute lymphoid leukemia (ALL). After adjusting for differing baseline characteristics and maternal and fetal deaths, we found that pregnant women with ALs were more likely to experience post-partum hemorrhage, to suffer from disseminated intravascular coagulation (DIC), to require transfusions, to have wound complications, and to experience venous thromboembolism (VTEs). Maternal death, preterm delivery, and intrauterine fetal death (IUFD) were more common in pregnant women with ALs.Conclusion: The incidence of ALs in pregnancy appears to be greater than what was previously believed. As it is associated with several adverse maternal and fetal outcomes, affected patients should be cared for in tertiary care institutions with access to high-risk obstetrical specialists, hematologists, and neonatologists.
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Affiliation(s)
- Sabrina Nolan
- Department of Obstetrics and Gynecology, Jewish General Hospital, McGill University, Montreal, Canada
| | - Nicholas Czuzoj-Shulman
- Centre for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, Canada
| | - Haim Arie Abenhaim
- Department of Obstetrics and Gynecology, Jewish General Hospital, McGill University, Montreal, Canada.,Centre for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, Canada
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Brogly SB, Hernández-Diaz S, Regan E, Fadli E, Hahn KA, Werler MM. Neonatal Outcomes in a Medicaid Population With Opioid Dependence. Am J Epidemiol 2018; 187:1153-1161. [PMID: 29155919 DOI: 10.1093/aje/kwx341] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 08/24/2017] [Indexed: 12/17/2022] Open
Abstract
Confounding may account for the apparently improved infant outcomes after prenatal exposure to buprenorphine versus methadone. We used Massachusetts Medicaid Analytic eXtract (MAX) data to identify a cohort of opioid-dependent mother-infant pairs (2006-2011), supplemented with confounder data from an external Boston, Massachusetts, cohort (2015-2016). Associations between prenatal buprenorphine exposure versus methadone exposure and infant outcomes in the MAX cohort were adjusted for measured MAX confounders and were additionally adjusted for unmeasured confounders with bias analysis using external cohort data. A total of 477 women in MAX were treated with methadone and 543 with buprenorphine. More buprenorphine users than methadone users were white and used psychotropic medications. After adjustment for MAX confounders, risk ratios among infants exposed to buprenorphine versus those exposed to methadone were 0.45 (95% confidence interval (CI): 0.34, 0.61) for preterm birth (birth at <37 weeks) and 0.75 (95% CI: 0.51, 1.11) for low birth weight for gestational age. The mean difference in infant hospitalization was -7.35 days (95% CI: -9.16, -5.55). After further adjustment with bias analysis, the risk ratios were 0.53 (95% CI: 0.39, 0.71) for preterm birth and 1.14 (95% CI: 0.77, 1.69) for low birth weight for gestational age, and the mean difference in infant hospitalization was -3.66 days (95% CI: -5.46, -1.87). External confounder data can be used to adjust for unmeasured confounding in studies of prenatal outcomes among women on opioid agonist therapy based on administrative databases.
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Affiliation(s)
- Susan B Brogly
- Department of Surgery, Queen’s University, Kingston, Ontario, Canada
| | - Sonia Hernández-Diaz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Emily Regan
- Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts
| | - Ela Fadli
- Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts
| | - Kristen A Hahn
- Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts
| | - Martha M Werler
- Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts
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Leung J, Dollard SC, Grosse SD, Chung W, Do T, Patel M, Lanzieri TM. Valganciclovir Use Among Commercially and Medicaid-insured Infants With Congenital CMV Infection in the United States, 2009-2015. Clin Ther 2018; 40:430-439.e1. [PMID: 29397198 DOI: 10.1016/j.clinthera.2018.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 09/22/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 10/18/2022]
Abstract
PURPOSE The aim of this study was to assess the clinical characteristics and trends in valganciclovir use among infants diagnosed with congenital cytomegalovirus (CMV) disease in the United States. METHODS We analyzed data from medical claims dated 2009-2015 from the Truven Health MarketScan® Commercial Claims and Encounters and Medicaid databases. We identified infants with a live birth code in the first claim who were continuously enrolled for at least 45 days. Among infants diagnosed with congenital CMV disease, identified by an ICD-9-CM or ICD-10-CM code for congenital CMV infection or CMV disease within 45 days of birth, we assessed data from claims containing codes for any CMV-associated clinical condition within the same period, and data from claims for hearing loss and/or valganciclovir within the first 180 days of life. FINDINGS In the commercial and Medicaid databases, we identified 257 (2.5/10,000) and 445 (3.3/10,000) infants, respectively, diagnosed with congenital CMV disease, among whom 135 (53%) and 282 (63%) had ≥1 CMV-associated condition, 30 (12%) and 32 (7%) had hearing loss, and 41 (16%) and 78 (18%) had a claim for valganciclovir. Among infants with congenital CMV disease who had a claim for valganciclovir, 37 (90%) among commercially insured infants and 68 (87%) among Medicaid-insured infants had ≥1 CMV-associated condition and/or hearing loss. From 2009 to 2015, the percentages with a claim for valganciclovir increased from 0% to 29% among commercially insured infants and from 4% to 37% among Medicaid-insured infants (P < 0.0001). IMPLICATIONS During 2009-2015, there was a strong upward trend in valganciclovir claims among insured infants who were diagnosed with congenital CMV disease, the majority of whom had CMV-associated conditions and/or hearing loss.
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Affiliation(s)
- Jessica Leung
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
| | - Sheila C Dollard
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Scott D Grosse
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Winnie Chung
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - ThuyQuynh Do
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Manisha Patel
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Tatiana M Lanzieri
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
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Jensen EA, Lorch SA. Association between Off-Peak Hour Birth and Neonatal Morbidity and Mortality among Very Low Birth Weight Infants. J Pediatr 2017; 186:41-48.e4. [PMID: 28284476 PMCID: PMC5500004 DOI: 10.1016/j.jpeds.2017.02.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 09/14/2016] [Revised: 01/19/2017] [Accepted: 02/02/2017] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess the independent association between overnight or "off-peak" hour delivery and 3 neonatal morbidities strongly associated with childhood neurocognitive impairment. STUDY DESIGN Retrospective population based cohort study of all infants with birth weights of 500-1499 g born without severe congenital anomalies in California or Pennsylvania between 2002 and 2009. Off-peak hour delivery was defined as birth between 12:00 a.m. and 6:59 a.m. The study outcomes were death; bronchopulmonary dysplasia, retinopathy of prematurity, and severe (grade 3 or 4) intraventricular hemorrhage among survivors; the composite of each morbidity or mortality; and the composite of death or 1 or more of the evaluated morbidities. RESULTS Of 47 617 evaluated infants, 9317 (19.6%) were born during off-peak hours. The frequencies of all study outcomes were higher among infants born during off-peak compared with peak hours. After adjusting for maternal, infant, and hospital characteristics, off-peak hour delivery was associated with increased odds of severe intraventricular hemorrhage among survivors (OR 1.39, 95% CI 1.23-1.57) and the composite outcomes of death or severe intraventricular hemorrhage (OR 1.16, 95% CI 1.07-1.25) and death or major morbidity (OR 1.08, 95% CI 1.02-1.15). There was no evidence of subgroup effects based on delivery mode, birth hospital neonatal intensive care level or annual very low birth weight infant delivery volume, or weekday vs weekend off-peak hour delivery for any study outcome. CONCLUSIONS Very low birth weight infants born between midnight and 7:00 a.m. are at increased risk for severe intraventricular hemorrhage and death or major neonatal morbidity.
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Affiliation(s)
- Erik A. Jensen
- Department of Pediatrics, Division of Neonatology, The Children’s Hospital of Philadelphia, The University of Pennsylvania School of Medicine
| | - Scott A. Lorch
- Department of Pediatrics, Division of Neonatology, The Children’s Hospital of Philadelphia, The University of Pennsylvania School of Medicine,Center for Perinatal and Pediatric Health Disparities Research, The Children’s Hospital of Philadelphia,Leonard Davis Institute of Health Economics, The Wharton School, The University of Pennsylvania, Philadelphia, PA
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Abstract
BACKGROUND Patient falls are one of the most commonly reported safety incidents in hospitals and an important cause of harm. Despite growing interest in postoperative fall prevention, data on the extent and correlates of falls among elective orthopedic inpatients are sparse and confined to lower limb arthroplasty. We evaluated inpatient fall trends after elective shoulder arthroplasty and identified patient and hospital characteristics associated with the occurrence of falls. METHODS We used discharge records from the Nationwide Inpatient Sample (2002-2011). Temporal trends were assessed, and multivariate logistic regression modeling was used to characterize factors associated with inpatient falls. RESULTS The rate of in-hospital falls increased from 0% in 2002 to 1.7% in 2011, despite a downward trend in length of stay (P < .001). Patient characteristics associated with the occurrence of falls included older age, Hispanic race/ethnicity, and lower household income. In decreasing order of magnitude, the comorbidities associated with falls were fluid/electrolyte disorder, opioid use disorder, malnutrition/weight loss, chronic anemia, visual impairment, nonopioid drug use disorder, congestive heart failure, and hearing impairment. Falls were more likely to occur at teaching hospitals and in regions other than the Northeast. CONCLUSIONS The rate of in-hospital falls after shoulder arthroplasty is increasing despite shorter stays. Many of the identified factors associated with inpatient falls after shoulder arthroplasty are modifiable, either by better preoperative planning and care coordination, by optimized medical management, or by improved patient education and engagement.
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Affiliation(s)
- Mariano E Menendez
- Department of Orthopaedic Surgery, New England Baptist Hospital, Tufts University School of Medicine, Boston, MA, USA; Department of Surgery and Perioperative Care, Dell Medical School at the University of Texas at Austin, TX, USA
| | - David Ring
- Department of Surgery and Perioperative Care, Dell Medical School at the University of Texas at Austin, TX, USA
| | - Andrew Jawa
- Department of Orthopaedic Surgery, New England Baptist Hospital, Tufts University School of Medicine, Boston, MA, USA; Boston Sports and Shoulder Center, Chestnut Hill, MA, USA.
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Schneiderman M, Czuzoj-Shulman N, Spence AR, Abenhaim HA. Maternal and neonatal outcomes of pregnancies in women with Addison's disease: a population-based cohort study on 7.7 million births. BJOG 2016; 124:1772-1779. [PMID: 27981742 DOI: 10.1111/1471-0528.14448] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To assess if pregnancies among women with Addison's disease (AD) are at higher risk of adverse maternal and neonatal outcomes. DESIGN Population-based retrospective cohort study. SETTING/POPULATION All births in the United States' Healthcare Cost and Utilization Project-Nationwide Inpatient Sample from 2003 to 2011. METHODS Baseline characteristics were compared between women with AD and those without, and prevalence over time was measured. Logistic regression was used to estimate the effect of AD on maternal and neonatal outcomes by calculating the crude and adjusted odds ratios (OR) and corresponding 95% confidence intervals (95% CI). RESULTS We calculated a prevalence of AD in pregnancy of 5.5/100 000, increasing from 5.6 to 9.6/100 000 (P = 0.0001) over the 9-year study period. Compared with women without AD, women with AD were more likely to deliver preterm (OR 1.50, 95% CI 1.16-1.95), deliver by caesarean section (OR 1.32, 95% CI 1.08-1.61), have impaired wound healing (OR 4.28, 95% CI 2.55-7.18), develop infections (OR 2.44, 95% CI 1.66-3.58) and develop thromboembolism (OR 5.21, 95% CI 2.15-12.63), require transfusions (OR 6.69, 95% CI 4.69-9.54), and have prolonged postpartum hospital admissions (OR 5.71, 95% CI 4.37-7.47). Maternal mortality was significantly higher than in the comparison group (OR 22.30, 95% CI 6.82-72.96). Congenital anomalies (OR 3.62, 95% CI 2.05-6.39) and small-for-gestational age infants (OR 1.78, 95% CI 1.15-2.75) were more likely in these pregnancies. CONCLUSIONS Addison's disease significantly increases the risk of severe adverse maternal and neonatal outcomes, so pregnant women with AD are best managed in tertiary-care centres. TWEETABLE ABSTRACT Pregnancies complicated by Addison's disease have an increased risk of adverse maternal and neonatal outcomes.
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Affiliation(s)
- M Schneiderman
- Department of Obstetrics and Gynaecology, Jewish General Hospital, Montreal, QC, Canada
| | - N Czuzoj-Shulman
- Centre for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, QC, Canada
| | - A R Spence
- Centre for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, QC, Canada
| | - H A Abenhaim
- Department of Obstetrics and Gynaecology, Jewish General Hospital, Montreal, QC, Canada.,Centre for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, QC, Canada
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Menendez ME, Ring D, Barnes CL. Inpatient Dislocation After Primary Total Hip Arthroplasty. J Arthroplasty 2016; 31:2889-93. [PMID: 27318409 DOI: 10.1016/j.arth.2016.05.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 04/28/2016] [Accepted: 05/03/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Inpatient dislocation after total hip arthroplasty (THA) is considered a nonreimbursable "never event" by the Centers for Medicare and Medicaid Services. There is extensive evidence that technical procedural factors affect dislocation risk, but less is known about the influence of nontechnical factors. We evaluated inpatient dislocation trends after elective primary THA and identified patient and hospital characteristics associated with the occurrence of dislocation. METHODS We used discharge records from the Nationwide Inpatient Sample (2002-2011). Temporal trends were assessed, and multivariable logistic regression modeling was used to identify factors associated with dislocation. RESULTS The in-hospital dislocation rate increased from 0.025% in 2002 to 0.15% in 2011, despite a downward trend in length of stay (P < .001). Patient characteristics associated with the occurrence of dislocation were black or Hispanic race/ethnicity, lower household income, and Medicaid insurance. Comorbidities associated with dislocation included hemiparesis/hemiplegia, drug use disorder, chronic renal failure, psychosis, and obesity. Dislocations were less likely to occur at teaching hospitals and in the South. CONCLUSION The in-hospital dislocation rate after elective primary THA is increasing, in spite of shorter stays and surgical advances over time. Given the sociodemographic disparities in dislocation risk documented herein, interventions to address social determinants of health might do as much or more to reduce the occurrence of dislocation than technical improvements.
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