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Effect of low birth weight on childhood asthma: a meta-analysis. | LitMetric

Effect of low birth weight on childhood asthma: a meta-analysis.

BMC Pediatr

Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.

Published: October 2014

AI Article Synopsis

Article Abstract

Background: Low birth weight is strongly correlated with an increased risk of adult diseases. Additionally, low birth weight might be a risk factor for asthma later in life.

Methods: A systematic literature search of the PubMed database from 1966 to November 2013 was conducted. The criteria for inclusion of papers were as follows: case-control or cohort studies; the odds ratio (OR) or risk ratio (RR) estimates with the corresponding 95% confidence intervals (CIs) were presented, or there were sufficient data for calculation; and studies were published in English up to October 2013. Random-effect and fixed-effect meta-analyses, meta-regression, and cumulative meta-analysis were conducted.

Results: Thirteen cohort studies and 1,105,703 subjects were included. The overall pooled RRs (95% CIs) of asthma risk for low birth weight were 1.162 (fixed-effects model, 95% CI, 1.128-1.197) and 1.152 (random-effects model, 95% CI, 1.082-1.222). In stratified analyses, the effect of low birth weight on childhood asthma was strong, particularly in studies conducted in Europe, those with a small sample size, and those published recently. A meta-regression analysis did not find significant determinants.

Conclusions: This meta-analysis shows that low birth weight significantly increases the risk of childhood asthma.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4288645PMC
http://dx.doi.org/10.1186/1471-2431-14-275DOI Listing

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