title: Gestational diabetes mellitus and risk of childhood overweight and obesity in offspring: a systematic review.
abstract: We systematically reviewed research examining the association between gestational diabetes (GDM) and childhood overweight and obesity. We identified studies from three sources: (1) a PubMed search of articles published between January 1990-January 2011, (2) reference lists of publications from the PubMed search, and (3) reference lists of review articles. We included studies that examined GDM separately from pregestational diabetes and childhood overweight or obesity defined as BMI > 85th or 95th percentile. A total of 12 studies were included in the systematic review. Crude odds ratios for the relationship between GDM and childhood overweight or obesity ranged from 0.7 to 6.3; in 8 studies, the associations were not statistically significant. In only 3 studies were results adjusted for any confounders; in the 2 that adjusted for prepregnancy obesity, the GDM and childhood overweight or obesity associations were attenuated and not statistically significant after adjustment. This paper demonstrates inconsistent evidence of an association between GDM and offspring overweight and obesity due to the methodological limitations of existing studies. Recommendations for future research are presented, which address methodological challenges.
authors.affiliation: Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA. skim1@cdc.gov
authors.forename: Shin Y
authors.initials: SY
authors.lastname: Kim
authors.forename: J Lucinda
authors.initials: JL
authors.lastname: England
authors.forename: J Andrea
authors.initials: JA
authors.lastname: Sharma
authors.forename: Terry
authors.initials: T
authors.lastname: Njoroge
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D016640:Diabetes, Gestational / Q000503:physiopathology* / Q000628:therapy; D005260:Female; D006801:Humans; D006943:Hyperglycemia / Q000503:physiopathology; D008297:Male; D008431:Maternal-Fetal Exchange; D009765:Obesity / Q000209:etiology*; D050177:Overweight / Q000209:etiology*; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012307:Risk Factors