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Keller A, Groot J, Clippet-Jensen C, Pinot de Moira A, Pedersen M, Sigsgaard T, Loft S, Budtz-Jørgensen E, Nybo Andersen AM. Exposure to different residential indoor characteristics during childhood and asthma in adolescence: a latent class analysis of the Danish National Birth Cohort. Eur J Epidemiol 2024; 39:51-65. [PMID: 37865616 PMCID: PMC10811114 DOI: 10.1007/s10654-023-01051-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 09/11/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Many residential indoor environments may have an impact on children's respiratory health. OBJECTIVES The aims of this study were to identify latent classes of children from the Danish National Birth Cohort (DNBC) who share similar patterns of exposure to indoor home characteristics, and to examine the association between membership in the latent classes and asthma in adolescence. METHODS We included data on residential indoor characteristics of offspring from the DNBC whose mothers had responded to the child's 11-year follow-up and who had data on asthma from the 18-year follow-up. Number of classes and associations were estimated using latent class analysis. To account for sample selection, we applied inverse probability weighting. RESULTS Our final model included five latent classes. The probability of current asthma at 18 years was highest among individuals in class one with higher clustering on household dampness (9, 95%CI 0.06-0.13). Individuals in class four (with higher clustering on pets ownership and living in a farm) had a lower risk of current asthma at age 18 compared to individuals in class one (with higher clustering on household dampness) (OR 0.53 (95%CI 0.32-0.88), p = .01). CONCLUSION Our findings suggest that, in a high-income country such as Denmark, groups of adolescents growing up in homes with mold and moisture during mid-childhood might be at increased risk of current asthma at age 18. Adolescents who grew-up in a farmhouse and who were exposed to pets seem less likely to suffer from asthma by age 18.
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Affiliation(s)
- Amélie Keller
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
| | - Jonathan Groot
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Clara Clippet-Jensen
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Angela Pinot de Moira
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Marie Pedersen
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Torben Sigsgaard
- Environment, Work and Health, Department of Public Health, University of Aarhus, Aarhus, Denmark
| | - Steffen Loft
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Esben Budtz-Jørgensen
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Marie Nybo Andersen
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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Fu W, Zheng Z, Zhao J, Feng M, Xian M, Wei N, Qin R, Xing Y, Yang Z, Wong GWK, Li J. Allergic disease and sensitization disparity in urban and rural China: A EuroPrevall-INCO study. Pediatr Allergy Immunol 2022; 33:e13903. [PMID: 36564871 DOI: 10.1111/pai.13903] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Studies in comparison with allergic diseases and sensitization between rural and urban environments in westernized countries might be biased and not adequately reflect countries undergoing rapid transition. METHODS A total of 5542 schoolchildren from urban area and 5139 from rural area were recruited for the EuroPrevall-INCO survey. A subsequent case-control sample with 196 children from urban area and 202 from rural area was recruited for a detailed face-to-face questionnaire and assessment of sensitization. Skin prick tests and serum-specific IgE measurements were used to assess sensitizations against food and aeroallergens. Logistic regression analysis was used to determine associations between risk/protective factors, food adverse reactions (FAR), allergic diseases, and sensitizations. RESULTS Prevalence of self-reported allergic diseases, including asthma (6.6% vs.2.5%), rhinitis (23.2% vs.5.3%), and eczema (34.1% vs.25.9%), was higher in urban than in rural children. Urban children had a significantly higher prevalence of FAR and related allergic diseases, and lower food/inhalation allergen sensitization rate, than those of rural children. In urban children, frequent changing places of residency (odds ratio 2.85, 95% confidence interval: 1.45-5.81) and antibiotic usage (3.54, 1.77-7.32) in early life were risk factors for sensitization, while sensitization and family history of allergy were risk factors for allergic diseases. In rural children, exposure to rural environments in early life was protective against both allergen sensitizations (0.46, 0.21-0.96) and allergic diseases (0.03, 0.002-0.19). CONCLUSION We observed a disparity in rates of allergic diseases and allergen sensitization between rural and urban children. In addition to family history, the development of allergic diseases and allergen sensitization were associated with specific urban/rural environmental exposures in early life.
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Affiliation(s)
- Wanyi Fu
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhenyu Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Pulmonary and Critical Care Medicine, Jieyang People' Hospital, Jieyang, China
| | - Jiefeng Zhao
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mulin Feng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mo Xian
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Nili Wei
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rundong Qin
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuhan Xing
- Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhaowei Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Gary W K Wong
- Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Strieker S, Weinmann T, Gerlich J, von Mutius E, Nowak D, Radon K, Wengenroth L. Farm living and allergic rhinitis from childhood to young adulthood - prospective results of the GABRIEL study. J Allergy Clin Immunol 2022; 150:1209-1215.e2. [PMID: 35779667 DOI: 10.1016/j.jaci.2022.05.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/19/2022] [Accepted: 05/17/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Growing up on a farm is associated with a reduced prevalence of respiratory allergies in childhood. It is unknown whether this protective effect remains into adulthood. OBJECTIVES We aimed to prospectively investigate the relationship between farm exposure and prevalence of allergic rhinitis and wheeze from childhood to early adulthood. METHODS Participants from phase 2 of the GABRIEL (Multidisciplinary Study to Identify the Genetic and Environmental Causes of Asthma in the European Community) study living in southern Germany (aged 6-11 years at baseline; 20-25 at follow-up) were invited to complete a questionnaire on sociodemographic data, farm contact, respiratory symptoms, and potential confounders. Odds ratios (OR) with 95% confidence intervals (95% CI) were modelled using generalized estimating equations (GEE). RESULTS Of the 2,276 phase 2 participants, 1,501 (66%) answered the follow-up questionnaire of which 1,333 could be included in the analyses. Living on a farm was associated with reduced prevalence of allergic rhinitis (persistent farm living OR 0.4; 95% CI 0.2-0.6; only baseline farm living 0.4; 0.2-0.8). The odds ratio for developing symptoms from baseline to follow-up was almost three (OR 2.7; 95% CI 2.1-3.3), irrespective of farm living. For symptoms of wheeze, no statistically significant association with farm living was observed. CONCLUSIONS The protective effect of farm living on allergic rhinitis persists from childhood to early adulthood. Continuing exposure over puberty does not add to the effect. This confirms that the window of opportunity for a protective effect might be found in childhood.
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Affiliation(s)
- Sonja Strieker
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Tobias Weinmann
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Jessica Gerlich
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany; Munich Centre of Health Sciences (MC-Health), Munich, Germany
| | - Erika von Mutius
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany; Dr. v. Haunersches Kinderspital, University Hospital, LMU Munich, Munich, Germany; Institute of Asthma and Allergy Prevention (IAP), Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Katja Radon
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany; Munich Centre of Health Sciences (MC-Health), Munich, Germany
| | - Laura Wengenroth
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital. LMU Munich, Munich, Germany; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany; Munich Centre of Health Sciences (MC-Health), Munich, Germany.
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