P-77: Pre-Pregnancy Obesity Can Increase the Risk of Cesarean Section

Background: To determine the relationship between prepregnancy obesity and increasing risk of cesarean section (CS). Materials and Methods: The population studied included 887 women with live births after 37 weeks gestation in Shahid Sedoughi hospital between April 1, 2008, and April 1, 2009. Women who were obese before pregnancy were comparing with nonobese women with regard to mode of delivery. Obesity was defined as body mass index (BMI) ≥ 30. The women with twin pregnancy, previouse CS and anoyher indication for CS were excludedData were analyzed by SPSS software version 15, and p value < 0.05 was counsidered significant. Results: To compare with nonobese women CS was increased in obes women. Odds Ratio was 2.01 (95% CI 1.56, 2.97). In addition, increasing BMI was associated with increased risk for cesarean delivery. Conclusion: Compared with nonobese women, women who are obese before pregnancy are at increased risk for CS. Preconceptional counseling regarding dietary and life-style modifications may alter this pattern.