Meta-analysis of air pollution exposure association with allergic sensitization in European birth cohorts

Olena Gruzieva*, Ulrike Gehring, Rob Aalberse, Raymond Agius, Rob Beelen, Heidrun Behrendt, Tom Bellander, Matthias Birk, Johan C. de Jongste, Elaine Fuertes, Joachim Heinrich, Gerard Hoek, Claudia Kluemper, Gerard Koppelman, Michal Korek, Ursula Kraemer, Sarah Lindley, Anna Moelter, Angela Simpson, Marie StandlMarianne van Hage, Andrea von Berg, Alet Wijga, Bert Brunekreef, Goeran Pershagen

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    Background: Evidence on the long-term effects of air pollution exposure on childhood allergy is limited.

    Objective: We investigated the association between air pollution exposure and allergic sensitization to common allergens in children followed prospectively during the first 10 years of life.

    Methods: Five European birth cohorts participating in the European Study of Cohorts for Air Pollution Effects project were included: BAMSE (Sweden), LISAplus and GINIplus (Germany), MAAS (Great Britain), and PIAMA (The Netherlands). Land-use regression models were applied to assess the individual residential outdoor levels of particulate matter with an aerodynamic diameter of less than 2.5 mm (PM2.5), the mass concentration of particles between 2.5 and 10 mm in size, and levels of particulate matter with an aerodynamic diameter of less than 10 mm (PM10), as well as measurement of the blackness of PM2.5 filters and nitrogendioxide and nitrogen oxide levels. Blood samples drawn at 4 to 6 years of age, 8 to 10 years of age, or both from more than 6500 children were analyzed for allergen-specific serum IgE against common allergens. Associations were assessed by using multiple logistic regression and subsequent meta-analysis.

    Results: The prevalence of sensitization to any common allergen within the 5 cohorts ranged between 24.1% and 40.4% at the age of 4 to 6 years and between 34.8% and 47.9% at the age of 8 to 10 years. Overall, air pollution exposure was not associated with sensitization to any common allergen, with odds ratios ranging from 0.94 (95% CI, 0.63-1.40) for a 1 x 10(-5) . m(-1) increase in measurement of the blackness of PM2.5 filters to 1.26 (95% CI, 0.90-1.77) for a 5 mu g/m(3) increase in PM2.5 exposure at birth address. Further analyses did not provide consistent evidence for a modification of the air pollution effects by sex, family history of atopy, or moving status.

    Conclusion: No clear associations between air pollution exposure and development of allergic sensitization in children up to 10 years of age were revealed.

    Original languageEnglish
    Pages (from-to)767-+
    Number of pages17
    JournalJournal of Allergy and Clinical Immunology
    Volume133
    Issue number3
    DOIs
    Publication statusPublished - Mar 2014

    Funding

    The research leading to these results has received funding from the European Community's Seventh Framework Program (FP7/2007-2011) under grant agreement no. 211250. The BAMSE study was supported by the Swedish Heart-Lung Foundation, the Konsul ThC Bergh Foundation, the Stockholm County Council, the Swedish Asthma and Allergy Association Research Foundation, the Swedish Foundation for Health Care Sciences and Allergy Research, the Swedish Environmental Protection Agency. The PIAMA study is supported by the Netherlands Organization for Health Research and Development; the Netherlands Organization for Scientific Research; the Netherlands Asthma Fund; the Netherlands Ministry of Spatial Planning, Housing, and the Environment; and the Netherlands Ministry of Health, Welfare, and Sport. The GINIplus study was mainly supported for the first 3 years of the Federal Ministry for Education, Science, Research and Technology (interventional arm) and Helmholtz Zentrum Munich (formerly GSF; observational arm). The 4-year, 6-year, and 10-year follow-up examinations of the GINIplus study were covered from the respective budgets of the 5 study centres (Helmholtz Zentrum Munich [formerly GSF], Research Institute, Department of Pediatrics, Marien-Hospital Wesel, LMU Munich, TU Munich, and from 6 years onward also from IUF-Leibniz Research Institute for Environmental Medicine) and a grant from the Federal Ministry for Environment. The LISAplus study was mainly supported by grants from the Federal Ministry for Education, Science, Research and Technology and in addition from Helmholtz Zentrum Munich (formerly GSF), Helmholtz Centre for Environmental Research-UFZ, Leipzig, Research Institute, Department of Pediatrics, MarienHospital Wesel, Pediatric Practice, Bad Honnef for the first 2 years. The 4-year, 6-year, and 10-year follow-up examinations of the LISAplus study were covered from the respective budgets of the involved partners (Helmholtz Zentrum Munich [formerly GSF], Helmholtz Centre for Environmental Research-UFZ, Leipzig, Research Institute, Department of Pediatrics, Marien-Hospital Wesel, Pediatric Practice, Bad Honnef, IUF-Leibniz-Research Institute for Environmental Medicine) and in addition by a grant from the Federal Ministry for Environment. The MAAS study was supported by Asthma UK grant and the Moulton Charitable Trust.

    Keywords

    • Air pollution
    • children
    • cohort
    • IgE
    • sensitization
    • meta-analysis
    • European Study of Cohorts for Air Pollution Effects
    • USE REGRESSION-MODELS
    • PM2.5 ABSORBENCY
    • ESCAPE PROJECT
    • ASTHMA
    • AREAS
    • CHILDREN
    • NO2
    • INFORMATION
    • CHILDHOOD
    • STABILITY

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