title: Effect of body mass index on pregnancy outcomes in nulliparous women delivering singleton babies: observational study.
abstract: OBJECTIVE
  To find out the effect of increasing body mass index (BMI) on pregnancy outcomes in nulliparous women delivering singleton babies.
  
  
  METHODS
  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 < 20 kg/m(2)), normal (BMI 20-24.9 kg/m(2)), overweight (BMI 25-29.9 kg/m(2)), and obese (BMI > 30 kg/m(2)) obstetric and perinatal outcomes were compared by univariate and multivariate analysis.
  
  
  RESULTS
  Maximum patients who underwent LSCS were having BMI > 30 kg/m(2) [OR 9.558 (95 % CI 5.82-17.27)]. As compared to women of normal BMI (20-24.9 kg/m(2)), 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 <2,500 g was more common in women with BMI < 25 kg/m(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.
authors.affiliation: Department of Obstetrics and Gynaecology, Mahila Chikitsalaya, S.M.S. Medical College, Jaipur, 302001 Rajasthan India ; Pramod Singvi C/o Dr. M.D. Singvi, Flat No. 104, Suraj Deep Apartment, Ramdas Peth, Akola, 444001 Maharashtra India.
authors.forename: Deepika
authors.initials: D
authors.lastname: Jain
authors.forename: Rakesh
authors.initials: R
authors.lastname: Khuteta
authors.forename: Veena
authors.initials: V
authors.lastname: Chaturvedi
authors.forename: Sushila
authors.initials: S
authors.lastname: Khuteta
keywords: Birth weight; Body mass index; LSCS; PIH; PPH
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