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Rzehak, P. ; Wijga, A.H.* ; Keil, T.* ; Eller, E.* ; Bindslev-Jensen, C.* ; Smit, H.A.* ; Weyler, J.* ; Dom, S.* ; Sunyer, J.* ; Mendez, M.* ; Torrent, M.* ; Vall, O.* ; Bauer, C.P.* ; Berdel, D.* ; Schaaf, B.* ; Chen, C.-M. ; Bergström, A.* ; Fantini, M.P.* ; Mommers, M.* ; Wahn, U.* ; Lau, S.* ; Heinrich, J.

Body mass index trajectory classes and incident asthma in childhood: Results from 8 European birth cohorts - a Global Allergy and Asthma European Network initiative.

J. Allergy Clin. Immunol. 131, 1528-1536 (2013)
Open Access Green as soon as Postprint is submitted to ZB.
BACKGROUND: The causal link between body mass index (BMI) or obesity and asthma in children is still being debated. Analyses of large longitudinal studies with a sufficient number of incident cases and in which the time-dependent processes of both excess weight and asthma development can be validly analyzed are lacking. OBJECTIVE: We sought to investigate whether the course of BMI predicts incident asthma in childhood. METHODS: Data from 12,050 subjects of 8 European birth cohorts on asthma and allergies were combined. BMI and doctor-diagnosed asthma were modeled during the first 6 years of life with latent growth mixture modeling and discrete time hazard models. Subpopulations of children were identified with similar standardized BMI trajectories according to age- and sex-specific "World Health Organization (WHO) child growth standards" and "WHO growth standards for school aged children and adolescents" for children up to age 5 years and older than 5 years, respectively (BMI-SDS). These types of growth profiles were analyzed as predictors for incident asthma. RESULTS: Children with a rapid BMI-SDS gain in the first 2 years of life had a higher risk for incident asthma up to age 6 years than children with a less pronounced weight gain slope in early childhood. The hazard ratio was 1.3 (95% CI, 1.1-1.5) after adjustment for birth weight, weight-for-length at birth, gestational age, sex, maternal smoking in pregnancy, breast-feeding, and family history of asthma or allergies. A rapid BMI gain at 2 to 6 years of age in addition to rapid gain in the first 2 years of life did not significantly enhance the risk of asthma. CONCLUSION: Rapid growth in BMI during the first 2 years of life increases the risk of asthma up to age 6 years.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Body Mass Index ; Rapid Growth ; Asthma ; Child ; Latent Growth Mixture Model ; European Birth Cohorts ; Global Allergy And Asthma European Network; Atopic Diseases ; Lung-function ; Obesity ; Children ; Risk ; Association ; Overweight ; Adiposity ; Weight ; Growth
ISSN (print) / ISBN 0091-6749
e-ISSN 1097-6825
Quellenangaben Volume: 131, Issue: 6, Pages: 1528-1536 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Amsterdam [u.a.]
Reviewing status Peer reviewed