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Lack of Relationship between Birth Conditions and Allergic Disorders in Japanese Children Aged Three Years.
MedLine Citation:
PMID:  23544740     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background. The current cross-sectional study examined the associations between low birth weight (LBW), preterm birth, and small-for-gestational-age (SGA) and the prevalence of wheeze, asthma, and eczema in Japanese children aged three years. Methods. Study subjects were 2004 children. All data were obtained using a questionnaire. Outcomes were defined according to the criteria of the International Study of Asthma and Allergies in Childhood. Adjustment was made for sex, number of siblings, breastfeeding duration, paternal and maternal educational level, paternal and maternal history of allergic disorders, maternal smoking during pregnancy, secondhand smoke exposure at home, and gestational age at birth. Results. The prevalence of wheeze, asthma, and eczema in the previous 12 months were 22.1%, 9.0%, and 17.5%, respectively, and 8.4% were classified as LBW (< 2500 g), 4.7% as preterm birth (< 37 weeks), and 7.1% as SGA (< 10th percentile). There were no significant associations between LBW, preterm birth, or SGA and the prevalence of wheeze, asthma, or eczema. A positive relationship between preterm birth and asthma was of borderline significance in children whose mothers had smoked during pregnancy (adjusted OR: 4.71 [95% CI: 0.97-21.39]), but not in those whose mothers had never smoked during pregnancy; the multiplicative interaction between preterm birth and maternal smoking during pregnancy with respect to asthma was significant (P = 0.04). Conclusions. The current study failed to detect significant associations between birth conditions and allergic disorders. Nevertheless, we did find evidence for an interaction between preterm birth and maternal smoking during pregnancy affecting asthma.
Authors:
Yoshihiro Miyake; Keiko Tanaka
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-2
Journal Detail:
Title:  The Journal of asthma : official journal of the Association for the Care of Asthma     Volume:  -     ISSN:  1532-4303     ISO Abbreviation:  J Asthma     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106454     Medline TA:  J Asthma     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1 Department of Preventive Medicine and Public Health, Faculty of Medicine, Fukuoka University , Fukuoka , Japan.
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