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

Gruzieva, Olena; Gehring, Ulrike; Aalberse, Rob; Agius, Raymond; Beelen, Rob; Behrendt, Heidrun; Bellander, Tom; Birk, Matthias; de Jongste, Johan C; Fuertes, Elaine; Heinrich, Joachim; Hoek, Gerard; KlĂŒmper, Claudia; Koppelman, Gerard; Korek, Michal; KrĂ€mer, Ursula; Lindley, Sarah; Mölter, Anna; Simpson, Angela; Standl, Marie; van Hage, Marianne; von Berg, Andrea; Wijga, Alet; Brunekreef, Bert; Pershagen, Göran

The Journal of allergy and clinical immunology. 2014;133(3):767-76.e7.

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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 ÎŒm (PM2.5), the mass concentration of particles between 2.5 and 10 ÎŒm in size, and levels of particulate matter with an aerodynamic diameter of less than 10 ÎŒm (PM10), as well as measurement of the blackness of PM2.5 filters and nitrogen dioxide 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 × 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 ÎŒg/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.

Bibliographic metadata

Type of resource:
Content type:
Publication type:
Published date:
Abbreviated journal title:
ISSN:
Place of publication:
United States
Volume:
133
Issue:
3
Pagination:
767-76.e7
Digital Object Identifier:
10.1016/j.jaci.2013.07.048
Pubmed Identifier:
24094547
Pii Identifier:
S0091-6749(13)01299-2
Access state:
Active

Institutional metadata

University researcher(s):

Record metadata

Manchester eScholar ID:
uk-ac-man-scw:242310
Created by:
Heydon, Kirsty
Created:
5th December, 2014, 14:46:15
Last modified by:
Heydon, Kirsty
Last modified:
5th December, 2014, 14:46:15

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