Am J Perinatol 2009; 26(5): 365-371
DOI: 10.1055/s-0028-1110088
© Thieme Medical Publishers

The Effects of Obesity and Weight Gain in Young Women on Obstetric Outcomes

Urania Magriples1 , Trace S. Kershaw2 , Sharon Schindler Rising3 , Claire Westdahl4 , Jeannette R. Ickovics2
  • 1Yale University School of Medicine, Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, New Haven, Connecticut
  • 2Yale University School of Public Health, New Haven, Connecticut
  • 3Centering Healthcare Institute, Cheshire, Connecticut
  • 4Emory University School of Medicine, Department of Obstetrics and Gynecology, Atlanta, Georgia
Further Information

Publication History

Publication Date:
11 December 2008 (online)

ABSTRACT

We investigated body mass index (BMI) and weight gain among pregnant women (ages 14 to 25) and assessed the relationship of BMI and weight gain on birth outcomes. We performed a secondary analysis of 841 women enrolled in a randomized controlled trial receiving prenatal care in two university-affiliated clinics. Almost half the patients were overweight or obese. An average of 32.3 ± 23.6 pounds was gained in pregnancy with only 25.3% gaining the recommended weight and over half overgaining. Weight gain had a significant relationship to birth weight. Multivariate analysis showed that prepregnancy BMI but not weight gain was a significant predictor of cesarean delivery (odds ratio [OR] 1.91, confidence interval [CI] 1.24 to 2.69, p < 0.0001). When large-for-gestational-age infants were removed from the analysis, there was still a significant effect of BMI on cesarean delivery (OR 1.76, CI 1.17 to 2.66, p = 0.007) but not of weight gain (OR 1.45, CI 0.94 to 2.17, p = 0.093). Prepregnancy BMI is a more significant predictor of cesarean delivery than pregnancy weight gain in young women.

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Urania MagriplesM.D. 

Department of Obstetrics, Yale University

333 Cedar Street, New Haven, CT 06520-8034

Email: urania.magriples@yale.edu