title: Pre-pregnancy obesity compromises obstetric and neonatal outcomes.
abstract: OBJECTIVE
  Obesity is an important issue among fertile women as it may affect obstetric and neonatal outcomes.
  
  
  METHODS
  Obstetric and neonatal outcomes of primiparous women were retrospectively analyzed in non-obese (n=11387) and obese (n=943) women. A subgroup analysis was performed in obese women divided into three groups: Grade I obesity (Group A, n=654), Grade II obesity (Group B, n=192), and Grade III obesity (Group C, n=97). Odds ratios (OR) were expressed with the corresponding 95% confidence intervals (CI).
  
  
  RESULTS
  The incidence of gestational diabetes (non-obese, 1.9%; obese, 7.6%; Group C, 19.6%) and preeclampsia (non-obese, 3.3%; obese, 13.5%; Group C, 17.5%) increased with rising weight. The risk of non-elective cesarean section was significantly higher in obese women than in non-obese women (21.7% vs. 13.2%). The risk of extreme preterm birth (before 28 weeks of gestation) doubled in the Grade I obesity group (OR, 2.1; 95% CI, 1.4-3.2) and nearly tripled in women with body mass index ≥35 kg/m2 (OR, 2.9; 95% CI, 1.7-4.9).
  
  
  CONCLUSIONS
  Pre-pregnancy obesity is associated with higher incidences of gestational diabetes and preeclampsia. Our study shows that obese women have a higher risk of non-elective cesarean section and preterm birth.
authors: Katharina
authors: K
authors: Hancke
authors: Theresa
authors: T
authors: Gundelach
authors: Birgit
authors: B
authors: Hay
authors: Sylvia
authors: S
authors: Sander
authors: Frank
authors: F
authors: Reister
authors: Jürgen M
authors: JM
authors: Weiss
mesh_terms: D000328:Adult; D002585:Cesarean Section / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D009765:Obesity / Q000150:complications*; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*; D012189:Retrospective Studies; D055815:Young Adult