Effect of Body Mass Index on Pregnancy Outcomes in Nulliparous Women Delivering Singleton Babies: Observational Study

摘要

Objective To find out the effect of increasing body mass index (BMI) on pregnancy outcomes in nulliparous women delivering singleton babies. Method This was a hospital-based observation study, based on 300 nulliparous women delivering singleton babies in June 2009—Sept. 2010. Women were categorized into three groups. Underweight (BMI?2), normal (BMI 20–24.9?kg/m2), overweight (BMI 25–29.9?kg/m2), and obese (BMI?>?30?kg/m2) obstetric and perinatal outcomes were compared by univariate and multivariate analysis. Results Maximum patients who underwent LSCS were having BMI?>?30?kg/m2 [OR 9.558 (95?% CI 5.82–17.27)]. As compared to women of normal BMI (20–24.9?kg/m2), morbidly obese women faced the higher risk of PIH [OR 8.045 (95?% CI 3.875–16.781)]. Obese women were more likely to have post partum hemorrhage [OR 5.11 (95?% CI 1.76–14.79)] compared with women of normal BMI. Birth weight 2 (21.21?%), while highest incidence of birth weight >4,000?g (14.29?%) is seen in women of the obese group. Conclusions Increasing BMI is associated with increased incidence of cesarean delivery, PIH, post partum hemorrhage, and macrosomic babies.