Maternal Obesity and Risk of Gestational Diabetes Mellitus (original) (raw)
Pathophysiology / Complications| August 01 2007
1Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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William M. Callaghan, MD, MPH;
William M. Callaghan, MD, MPH
1Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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1Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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Christopher H. Schmid, PHD
2Institute for Clinical Research and Health Policy Studies, Tufts-New England Medical Center, Boston, Massachusetts
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2Institute for Clinical Research and Health Policy Studies, Tufts-New England Medical Center, Boston, Massachusetts
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Lucinda J. England, MD, MSPH
1Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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1Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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Address correspondence and reprint requests to Susan Y. Chu, Centers for Disease Control and Prevention, Mailstop K-23, 1600 Clifton Rd., Atlanta, GA 30333. E-mail: [email protected]
Diabetes Care 2007;30(8):2070–2076
OBJECTIVE—Numerous studies in the U.S. and elsewhere have reported an increased risk of gestational diabetes mellitus (GDM) among women who are overweight or obese compared with lean or normal-weight women. Despite the number and overall consistency of studies reporting a higher risk of GDM with increasing weight or BMI, the magnitude of the association remains uncertain. This meta-analysis was conducted to better estimate this risk and to explore differences across studies.
RESEARCH DESIGN AND METHODS—We identified studies from three sources: 1) a PubMed search of relevant articles published between January 1980 and January 2006, 2) reference lists of publications selected from the PubMed search, and 3) reference lists of review articles on obesity and maternal outcomes published between January 2000 and January 2006. We used a Bayesian model to perform the meta-analysis and meta-regression. We included cohort-designed studies that reported obesity measures reflecting pregnancy body mass, that had a normal-weight comparison group, and that presented data allowing a quantitative measurement of risk.
RESULTS—Twenty studies were included in the meta-analysis. The unadjusted ORs of developing GDM were 2.14 (95% CI 1.82–2.53), 3.56 (3.05–4.21), and 8.56 (5.07–16.04) among overweight, obese, and severely obese compared with normal-weight pregnant women, respectively. The meta-regression analysis found no evidence that these estimates were affected by selected study characteristics (publication date, study location, parity, type of data collection [retrospective vs. prospective], and prevalence of GDM among normal-weight women).
CONCLUSIONS—Our findings indicate that high maternal weight is associated with a substantially higher risk of GDM.
Published ahead of print at http://care.diabetesjournals.org on 6 April 2007. DOI: 10.2337/dc06-2559a.
The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.
A table elsewhere in this issue shows conventional and Système International (SI) units and conversion factors for many substances.
The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked “advertisement” in accordance with 18 U.S.C Section 1734 solely to indicate this fact.
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