title: [Influence of prepregnancy weight and maternal weight gain on pregnancy outcome].
abstract: OBJECTIVE
  To determine the influence of weight before pregnancy and maternal weight gain on pregnancy outcome.
  
  
  METHODS
  Body wight index (BWI) was calculated before pregnancy and maternal weight gain and pregnancy outcomes were followed up in 2,584 primipara with singleton births.
  
  
  RESULTS
  Compared with normal weight women, the prevalences of pregnancy induced hypertension, operative deliveries and high birth weight infants were significantly higher in women with heavy weight, and prevalence of low birth weight infants was significantly higher in women with lower weight.
  
  
  CONCLUSIONS
  Prepregnancy weight and weight gain during pregnancy have direct impact on birth weight of the baby and maternal complications.
authors.affiliation: Qingdao Municipal Hospital.
authors.forename: B
authors.initials: B
authors.lastname: Sun
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: Q
authors.initials: Q
authors.lastname: Song
mesh_terms: D000328:Adult; D001724:Birth Weight; D001827:Body Height; D001835:Body Weight; D002681:China / Q000453:epidemiology; D005260:Female; D005320:Fetal Macrosomia / Q000453:epidemiology; D006801:Humans; D011225:Pre-Eclampsia / Q000453:epidemiology; D011247:Pregnancy; D011256:Pregnancy Outcome; D011263:Pregnancy Trimester, Third; D015430:Weight Gain