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Lucas JA, Kaufmann J, Jones M, Garg A, Ezekiel-Herrera D, Puro J, Marino M, Heintzman J. Role of ethnicity/language in documented rates of pediatric asthma prescription refills. J Asthma 2023; 60:360-367. [PMID: 35259312 PMCID: PMC9485292 DOI: 10.1080/02770903.2022.2051545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Medication maintenance is critical in the management of asthma. We investigated the differences in electronic health record (EHR) documentation of medication refills for Spanish- and English-speaking Latino children and non-Hispanic white children by examining rates of albuterol rescue inhaler refills from 2005 to 2017, and and inhaled corticosteroid refills from 2015 to 2017 in a multi-state network of community health centers (CHCs). METHODS We used data from the ADVANCE network of CHCs. Our sample consisted of children aged 3-17, with a diagnosis of asthma and either albuterol or inhaled corticosteroid prescriptions (n = 39,162; n = 4,738 children, respectively). Negative binomial regression was used to calculate rates of refills per prescription adjusted for relevant patient-level covariates. Analyses stratified by asthma severity were also conducted. RESULTS English-speaking Latino children had lower rates of albuterol refills compared with non-Hispanic white children (rate ratio [RR] = 0.88, 95% confidence interval [CI]: 0.80-0.98), a trend that persisted among children with moderate/severe persistent asthma severity (RR = 0.85, 95% CI: 0.76-0.95). Spanish-speaking Latino and non-Hispanic white children had similar albuterol refills. Inhaled corticosteroid refill rates were comparable between all groups. CONCLUSIONS In a multi-state network, these findings suggest that CHCs deliver equitable asthma care related to prescription refills between their Latino and white patients, but there is still opportunity for providers to ensure that their English-speaking Latino patients have access to necessary emergency asthma medication.
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Affiliation(s)
- Jennifer A. Lucas
- Department of Family Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Jorge Kaufmann
- Department of Family Medicine, Oregon Health & Science University, Portland, OR, USA
| | | | - Arvin Garg
- Department of Pediatrics, University of Massachusetts Medical School, Worcester, MA, USA
| | - David Ezekiel-Herrera
- Department of Family Medicine, Oregon Health & Science University, Portland, OR, USA
| | | | - Miguel Marino
- Department of Family Medicine, Oregon Health & Science University, Portland, OR, USA;,Division of Biostatistics, School of Public Health, Oregon Health & Science University—Portland State University, Portland, OR, USA
| | - John Heintzman
- Department of Family Medicine, Oregon Health & Science University, Portland, OR, USA;,OCHIN, Inc, Portland, OR, USA
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Heintzman J, Kaufmann J, Bailey S, Lucas J, Suglia SF, Puro J, Giebultowicz S, Ezekiel-Herrera D, Marino M. Asthma Ambulatory Care Quality in Foreign-Born Latino Children in the United States. Acad Pediatr 2022; 22:647-656. [PMID: 34688905 PMCID: PMC10602714 DOI: 10.1016/j.acap.2021.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 11/01/2022]
Abstract
BACKGROUND Foreign-born Latino children in the United States (US) have poor asthma outcomes, but the role of routine care utilization in these outcomes is unclear. Our objective was to compare select ambulatory care utilization measures for asthma between foreign-born Latino, US-born Latino, and non-Hispanic white children. METHODS Using a multistate network of clinics with a linked electronic health record, we compared the International Classification of Disease (ICD)-coded asthma diagnosis among those with respiratory symptoms, electronic health records documentation of diagnosis, prescriptions, and influenza vaccination of foreign-born and US-born Latino children, and non-Hispanic white children over a 10+ year study period. We also examined outcomes by country of birth in children from Mexico, Cuba, and Guatemala. RESULTS Among our study population (n = 155,902), 134,570 were non-Hispanic white, 19,143 were US-born Latino, and 2189 were foreign-born Latino. Among those with suspicious respiratory symptoms, there was no difference between these groups in the predicted probability of an ICD-coded asthma diagnosis. US-born Latino children with asthma were less likely to have asthma documented on their problem list, more likely to have an albuterol prescription, and less likely to have an inhaled steroid prescribed. All Latino children had higher rates of influenza vaccination than non-Hispanic white children. CONCLUSIONS In a national network, there were few disparities between Latino (US- and foreign-born) children and non-Hispanic white comparators in many common asthma care services, except some measures in US-born Latino children. Providers should understand that their US-born Latino children may be at elevated risk for not receiving adequate asthma care.
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Affiliation(s)
- John Heintzman
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore; OCHIN Inc. (J Heintzman, J Puro, and S Giebultowicz), Portland, Ore.
| | - Jorge Kaufmann
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore
| | - Steffani Bailey
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore
| | - Jennifer Lucas
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore
| | - Shakira F Suglia
- Department of Epidemiology, Emory University Rollins School of Public Health (SF Suglia), Atlanta, Ga
| | - Jon Puro
- OCHIN Inc. (J Heintzman, J Puro, and S Giebultowicz), Portland, Ore
| | | | - David Ezekiel-Herrera
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore
| | - Miguel Marino
- Department of Family Medicine, Oregon Health & Science University (J Heintzman, J Kaufmann, S Bailey, J Lucas, and D Ezekiel-Herrera), Portland, Ore; Biostatistics Group, OHSU-PSU School of Public Health (M Marino), Portland, Ore
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Driscoll AJ, Arshad SH, Bont L, Brunwasser SM, Cherian T, Englund JA, Fell DB, Hammitt LL, Hartert TV, Innis BL, Karron RA, Langley GE, Mulholland EK, Munywoki PK, Nair H, Ortiz JR, Savitz DA, Scheltema NM, Simões EAF, Smith PG, Were F, Zar HJ, Feikin DR. Does respiratory syncytial virus lower respiratory illness in early life cause recurrent wheeze of early childhood and asthma? Critical review of the evidence and guidance for future studies from a World Health Organization-sponsored meeting. Vaccine 2020; 38:2435-2448. [PMID: 31974017 PMCID: PMC7049900 DOI: 10.1016/j.vaccine.2020.01.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/20/2019] [Accepted: 01/07/2020] [Indexed: 12/21/2022]
Abstract
Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infection (LRTI) and hospitalization in infants and children globally. Many observational studies have found an association between RSV LRTI in early life and subsequent respiratory morbidity, including recurrent wheeze of early childhood (RWEC) and asthma. Conversely, two randomized placebo-controlled trials of efficacious anti-RSV monoclonal antibodies (mAbs) in heterogenous infant populations found no difference in physician-diagnosed RWEC or asthma by treatment group. If a causal association exists and RSV vaccines and mAbs can prevent a substantial fraction of RWEC/asthma, the full public health value of these interventions would markedly increase. The primary alternative interpretation of the observational data is that RSV LRTI in early life is a marker of an underlying predisposition for the development of RWEC and asthma. If this is the case, RSV vaccines and mAbs would not necessarily be expected to impact these outcomes. To evaluate whether the available evidence supports a causal association between RSV LRTI and RWEC/asthma and to provide guidance for future studies, the World Health Organization convened a meeting of subject matter experts on February 12-13, 2019 in Geneva, Switzerland. After discussing relevant background information and reviewing the current epidemiologic evidence, the group determined that: (i) the evidence is inconclusive in establishing a causal association between RSV LRTI and RWEC/asthma, (ii) the evidence does not establish that RSV mAbs (and, by extension, future vaccines) will have a substantial effect on these outcomes and (iii) regardless of the association with long-term childhood respiratory morbidity, severe acute RSV disease in young children poses a substantial public health burden and should continue to be the primary consideration for policy-setting bodies deliberating on RSV vaccine and mAb recommendations. Nonetheless, the group recognized the public health importance of resolving this question and suggested good practice guidelines for future studies.
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Affiliation(s)
- Amanda J Driscoll
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, 685 W. Baltimore St, Suite 480, Baltimore, MD, USA
| | - S Hasan Arshad
- The David Hide Asthma and Allergy Research Centre, St. Mary's Hospital, Newport PO30 5TG, Isle of Wight, UK; Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
| | - Louis Bont
- The ReSViNET Foundation, Zeist, the Netherlands; Department of Pediatric Infectious Diseases, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Lundlaan 6, Utrecht, the Netherlands; Department of Translational Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Lundlaan 6, Utrecht, the Netherlands
| | - Steven M Brunwasser
- Center for Asthma Research, Allergy, Pulmonary & Critical Care Medicine, Vanderbilt University School of Medicine, 2525 West End Ave, Suite 450, Nashville, TN 37203, USA
| | - Thomas Cherian
- MM Global Health Consulting, Chemin Maurice Ravel 11C, 1290 Versoix, Switzerland
| | - Janet A Englund
- Seattle Children's Hospital, 4800 Sand Point Way NE Seattle, WA 98105, USA; Department of Pediatrics, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Deshayne B Fell
- School of Epidemiology and Public Health, University of Ottawa, Children's Hospital of Eastern Ontario (CHEO) Research Institute, 401 Smyth Road, CPCR, Room L-1154, Ottawa, Ontario K1H 8L1, Canada
| | - Laura L Hammitt
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205, USA
| | - Tina V Hartert
- Center for Asthma Research, Allergy, Pulmonary & Critical Care Medicine, Vanderbilt University School of Medicine, 2525 West End Ave, Suite 450, Nashville, TN 37203, USA
| | - Bruce L Innis
- Center for Vaccine Innovation and Access, PATH, 455 Massachusetts Avenue NW, Suite 1000, WA, DC 20001, USA
| | - Ruth A Karron
- Center for Immunization Research, Johns Hopkins Bloomberg School of Public Health, 624 N. Broadway, Suite 217, Baltimore, MD 21205, USA
| | - Gayle E Langley
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, US Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30329, USA
| | - E Kim Mulholland
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC 3052, Australia; Department of Paediatrics, University of Melbourne, Flemington Rd, Parkville, VIC 3052, Australia; Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel St, Bloomsbury, London WC1E 7HT, UK
| | - Patrick K Munywoki
- Division of Global Health Protection, US Centers for Disease Control and Prevention, PO Box 606-00621, Nairobi, Kenya
| | - Harish Nair
- The ReSViNET Foundation, Zeist, the Netherlands; Centre for Global Health Research, Usher Institute, University of Edinburgh, Medical School, Teviot Place, Edinburgh EH8 9AG, Scotland, United Kingdom
| | - Justin R Ortiz
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, 685 W. Baltimore St, Suite 480, Baltimore, MD, USA
| | - David A Savitz
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02903, USA
| | - Nienke M Scheltema
- Department of Pediatric Infectious Diseases, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Lundlaan 6, Utrecht, the Netherlands
| | - Eric A F Simões
- Department of Pediatrics, Section of Infectious Diseases, University of Colorado School of Medicine, and Children's Hospital Colorado 13123 E. 16th Ave, B065, Aurora, CO 80045, USA; Department of Epidemiology, Center for Global Health Colorado School of Public Health, 13001 E 17th Pl B119, Aurora, CO 80045, USA
| | - Peter G Smith
- Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine, Keppel St, Bloomsbury, London WC1E 7HT, UK
| | - Fred Were
- Department of Pediatrics and Child Health, University of Nairobi, P.O. Box 30197, GPO, Nairobi, Kenya
| | - Heather J Zar
- Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, Cape Town, South Africa; SA-Medical Research Council Unit on Child and Adolescent Health, University of Cape Town, 5th Floor ICH Building, Klipfontein Road, Cape Town, South Africa
| | - Daniel R Feikin
- Department of Immunizations, Vaccines and Biologicals, World Health Organization, 20 Avenue Appia, Geneva, Switzerland
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Weinstein SM, Orozco K, Pugach O, Rosales G, Songthangtham N, Martin MA. Parent Nativity and Child Asthma Control in Families of Mexican Heritage: The Effects of Parent Depression and Social Support. Acad Pediatr 2020; 20:967-974. [PMID: 32407888 PMCID: PMC7483789 DOI: 10.1016/j.acap.2020.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Research has repeatedly demonstrated that parent foreign nativity has a protective effect on child asthma outcomes among Mexican Americans, but the mechanisms underlying this relationship are not well understood. The current study explored parent depression as a mediator and social support as a moderator of the parent nativity-child asthma control pathway. METHODS Data come from the baseline sample of a trial (NCT02481986) testing community interventions for 223 children aged 5 to 16 with uncontrolled asthma. We focused on parent/child dyads of Mexican heritage (N = 165; mean age = 9.08, standard deviation = 2.94; 57.3% with Mexico-born parent). Asthma control was defined using the child and adult versions of the Asthma Control Test (ACT). Psychosocial factors included parent depression symptoms and social (instrumental, informational, and emotional) support. RESULTS Mexican-born parents had fewer depressive symptoms (β^ = -2.03, SE^ = 0.24) and children with better asthma control (β^ = 1.78, SE^ = 0.24) than US-born parents, P < .0001. Analyses suggested partial mediation of the nativity-ACT path via parent depression (P < .001). An interaction between Instrumental Support and Nativity was marginally significant (β^ = -0.10, SE^ = 0.05, P = .07), with protective effects only observed at higher support levels. Last, among Mexico-born parents, the protective nativity effects on ACT declined with increasing residential years in the United States through 12 years. CONCLUSIONS This study is novel in identifying parent depression as one mechanism underlying the effects of parent nativity on child asthma control, but results suggest that the health advantages may depend on availability of support. Providing resources for parent depression and instrumental support (transportation, childcare) can optimize asthma interventions in this population.
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Kaplan RC, Wang Z, Usyk M, Sotres-Alvarez D, Daviglus ML, Schneiderman N, Talavera GA, Gellman MD, Thyagarajan B, Moon JY, Vázquez-Baeza Y, McDonald D, Williams-Nguyen JS, Wu MC, North KE, Shaffer J, Sollecito CC, Qi Q, Isasi CR, Wang T, Knight R, Burk RD. Gut microbiome composition in the Hispanic Community Health Study/Study of Latinos is shaped by geographic relocation, environmental factors, and obesity. Genome Biol 2019; 20:219. [PMID: 31672155 PMCID: PMC6824043 DOI: 10.1186/s13059-019-1831-z] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 09/23/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Hispanics living in the USA may have unrecognized potential birthplace and lifestyle influences on the gut microbiome. We report a cross-sectional analysis of 1674 participants from four centers of the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), aged 18 to 74 years old at recruitment. RESULTS Amplicon sequencing of 16S rRNA gene V4 and fungal ITS1 fragments from self-collected stool samples indicate that the host microbiome is determined by sociodemographic and migration-related variables. Those who relocate from Latin America to the USA at an early age have reductions in Prevotella to Bacteroides ratios that persist across the life course. Shannon index of alpha diversity in fungi and bacteria is low in those who relocate to the USA in early life. In contrast, those who relocate to the USA during adulthood, over 45 years old, have high bacterial and fungal diversity and high Prevotella to Bacteroides ratios, compared to USA-born and childhood arrivals. Low bacterial diversity is associated in turn with obesity. Contrasting with prior studies, our study of the Latino population shows increasing Prevotella to Bacteroides ratio with greater obesity. Taxa within Acidaminococcus, Megasphaera, Ruminococcaceae, Coriobacteriaceae, Clostridiales, Christensenellaceae, YS2 (Cyanobacteria), and Victivallaceae are significantly associated with both obesity and earlier exposure to the USA, while Oscillospira and Anaerotruncus show paradoxical associations with both obesity and late-life introduction to the USA. CONCLUSIONS Our analysis of the gut microbiome of Latinos demonstrates unique features that might be responsible for health disparities affecting Hispanics living in the USA.
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Affiliation(s)
- Robert C. Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Zheng Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
| | - Mykhaylo Usyk
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY USA
| | - Daniela Sotres-Alvarez
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC USA
| | - Martha L. Daviglus
- Institute for Minority Health Research, University of Illinois at Chicago College of Medicine, Chicago, IL USA
| | | | - Gregory A. Talavera
- Division of Health Promotion and Behavioral Science, San Diego State University, San Diego, CA USA
| | - Marc D. Gellman
- Department of Psychology, University of Miami, Miami, FL USA
| | - Bharat Thyagarajan
- Division of Molecular Pathology and Genomics, University of Minnesota, Minneapolis, MN USA
| | - Jee-Young Moon
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
| | - Yoshiki Vázquez-Baeza
- Jacobs School of Engineering, University of California, San Diego, La Jolla, CA USA
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA USA
| | - Daniel McDonald
- Department of Pediatrics, University of California, San Diego, La Jolla, CA USA
| | | | - Michael C. Wu
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Kari E. North
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC USA
| | - Justin Shaffer
- Department of Pediatrics, University of California, San Diego, La Jolla, CA USA
| | | | - Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
| | - Carmen R. Isasi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
| | - Tao Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
| | - Rob Knight
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA USA
- Department of Pediatrics, University of California, San Diego, La Jolla, CA USA
- Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
| | - Robert D. Burk
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461 USA
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY USA
- Department of Microbiology & Immunology, Albert Einstein College of Medicine, Bronx, NY USA
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Acculturation is associated with asthma burden and pulmonary function in Latino youth: The GALA II study. J Allergy Clin Immunol 2019; 143:1914-1922. [PMID: 30682453 DOI: 10.1016/j.jaci.2018.12.1015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 11/12/2018] [Accepted: 12/24/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Acculturation is an important predictor of asthma in Latino youth, specifically Mexican Americans. Less is known about acculturation and pulmonary function measures. OBJECTIVE We sought to estimate the association of acculturation measures with asthma and pulmonary function in Latino youth and determine whether this association varies across Latino subgroups. METHODS We included 1849 Latinos (302 Caribbean Spanish, 193 Central or South Americans, 1136 Mexican Americans, and 218 other Latino children) aged 8 to 21 years from 4 urban regions in the United States. Acculturation measures include nativity status, age of immigration, language of preference, and generation in the United States. We used multivariable logistic and linear regression models to quantify the association of acculturation factors with the presence of asthma (case-control study) and pulmonary function (case-only study), adjusting for demographic, socioenvironmental, and clinical variables. RESULTS For all acculturation measures (nativity status, age of immigration, language of preference, and generation in the United States), greater levels of acculturation were associated with greater odds of asthma. Among cases, high (English preference) and medium (equal preference for Spanish and English) levels of language acculturation were associated with decreased bronchodilator response compared with low (Spanish preference) levels (P = .009 and .02, respectively). Similarly, high language acculturation was associated with increased FEV1 compared with low language acculturation (P = .02). There was insufficient evidence of heterogeneity for associations across Latino subgroups. CONCLUSIONS Acculturation was associated with diagnosed asthma and pulmonary function in Latino children and is an important factor to consider in the management of Latino youth with asthma.
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Tham EH, Loo EXL, Zhu Y, Shek LPC. Effects of Migration on Allergic Diseases. Int Arch Allergy Immunol 2018; 178:128-140. [PMID: 30466080 DOI: 10.1159/000494129] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 10/01/2018] [Indexed: 11/19/2022] Open
Abstract
Studies in migrant populations provide vital opportunities to investigate the role of environmental factors in the pathogenesis of allergic disorders. Differences in allergy prevalence have been observed between migrants and native-born subjects living in the same geographical location. Immigrants who migrate from less affluent countries with lower allergy prevalence tend to have a lower prevalence of allergic disorders compared to native-born residents of the more affluent host country. The patterns of allergic disease prevalence also differ between first- and second-generation migrants. The timing of migration in relation to birth, age at migration, and duration of residence in the host country also influence one's atopic risk. A complex interplay of multiple environmental, socioeconomic, and cultural factors is likely responsible for these observed differences. Further research into the roles of various risk factors in modulating differences in allergic disease prevalence between migrant and native populations will enhance our understanding of the complex gene-environment interactions involved in the pathogenesis of allergic disorders.
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Affiliation(s)
- Elizabeth Huiwen Tham
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System (NUHS), Singapore, Singapore, .,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore,
| | - Evelyn Xiu Ling Loo
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Yanan Zhu
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Lynette Pei-Chi Shek
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System (NUHS), Singapore, Singapore.,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
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Asthma Risk Associated with Indoor Mold Contamination in Hispanic Communities in Eastern Coachella Valley, California. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2018; 2018:9350370. [PMID: 30410546 PMCID: PMC6205096 DOI: 10.1155/2018/9350370] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/27/2018] [Indexed: 11/18/2022]
Abstract
Indoor mold contamination has been associated in many studies with an increased risk of asthma and respiratory illness. This study investigated indoor mold contamination and the prevalence of asthma/respiratory illness in two low-income, Hispanic communities, Mecca and Coachella City, in the Eastern Coachella Valley (ECV) of California. The study consisted of a questionnaire to assess asthma/respiratory illness and the quantification of mold contamination in house dust samples using the Environmental Relative Moldiness Index (ERMI) scale. About 11% of the adults and 17% of the children in both Mecca and Coachella City met our definitions of asthma/respiratory illness. The average ERMI values in Mecca and Coachella City housing (10.3 and 6.0, respectively) are in the top 25% of ERMI values for the United States (US) homes. Overall, the homes surveyed in these ECV communities had an average prevalence of occupant asthma of 12.8% and an average ERMI value of 9.0. The prevalence of asthma/respiratory illness in the Hispanic communities of Mecca and Coachella City and the mold contamination in their homes appear to be greater than the averages for the rest of the US. The higher levels of mold contamination in their homes appear to be associated with a greater risk of asthma/respiratory illness for these low-income, Hispanic communities.
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