Maternal Obesity and Diabetes as Risk Factors for Adverse Pregnancy Outcomes: Differences Among 4 Racial/Ethnic Groups
Terry J. Rosenberg, PhD,
Samantha Garbers, MPA,
Heather Lipkind, MD and
Mary Ann Chiasson, DrPH
Terry J. Rosenberg, Samantha Garbers, and Mary Ann Chiasson are affiliated with the Medical Health and Research Association (MHRA) of New York City, Inc, New York, NY. Heather Lipkind is with the Columbia University College of Physicians and Surgeons, Department of Obstetrics and Gynecology, New York, NY.
Correspondence: Requests for reprints should be sent to Terry Rosenberg, PhD, MHRA, 40 Worth St, Suite 720, New York, NY 10013 (e-mail: trosenberg{at}mhra.org).
Objectives. We examined associations between obesity, diabetes,and 3 adverse pregnancy outcomesprimary cesarean delivery,preterm birth, and low birth-weight (LBW)by racial/ethnicgroup. Our goal was to better understand how these associationsdifferentially impact birth outcomes by group in order to developmore focused interventions.
Methods. Data were collected from the 1999, 2000, and 2001 NewYork City birth files for 329988 singleton births containinginformation on prepregnancy weight and prenatal weight gain.Separate logistic regressions for 4 racial/ethnic groups predictedthe adverse pregnancy outcomes associated with diabetes. Othervariables in the regressions included obesity, excess weightgain, hypertension, preeclampsia, and substance use during pregnancy(e.g., smoking).
Results. Chronic and gestational diabetes were significant risksfor a primary cesarean and for preterm birth in all women. Diabetesas a risk for LBW varied by group. For example, whereas chronicdiabetes increased the risk for LBW among Asians, Hispanics,and Whites (adjusted odds ratios=2.28, 1.69, and 1.59), respectively,it was not a significant predictor of LBW among Blacks.
Conclusions. In this large, population-based study, obesityand diabetes were independently associated with adverse pregnancyoutcomes, highlighting the need for women to undergo lifestylechanges to help them control their weight during the childbearingyears and beyond.
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