title: [Obesity during pregnancy: gestational complications and birth outcomes.]
abstract: OBJECTIVE
  To evaluate the influence of maternal obesity on pregnancy, childbirth, and neonatal outcomes.
  
  
  METHODS
  A cross-sectional study with 298 postpartum women. Information was obtained through interviews and access to patients' medical records. The patients were divided into three groups according to their pre-gestational body mass index: normal weight (18.5-24.9 kg/m2), overweight (25.0-29.9 kg/m2), and obese (≥30.0 kg/m2). Data are reported as adjusted odds ratios with 95% confidence interval (95%CI) following multinomial logistic regression analysis to account for confounding variables.
  
  
  RESULTS
  Compared to pregnant women with normal body mass index, overweight women had greater chances of having cesarean delivery, odds ratio (OR) of 2.2 and 95%CI 1.3-3.9, and obese women even more (OR=4.2; 95%CI 2.1-8.1). The chances of gestational diabetes increased in the Overweight (OR=2.5; 95%CI 1.1-5.6) and Obese groups (OR=11.1; 95%CI 5.0-24.6). The occurrence of hypertensive syndrome was also higher in overweight (OR=3.2; 95%CI 1.2-8.1) and obese pregnant women (OR=7.5; 95%CI 2.9-19.1). Major postpartum hemorrhage only showed greater values in the obese women group (OR=4.1; 95%CI 1.1-15.8). Regarding the newborns, the probability of a low Apgar score at first minute was higher in the Obese Group (OR=5.5; 95%CI 1.2-23.7) and chances of macrosomia were higher in the Overweight Group (OR=2.9; 95%CI 1.3-6.3). Data regarding neonatal hypoglycemia were not conclusive.
  
  
  CONCLUSIONS
  Excessive weight (overweight and obesity) during pregnancy increases the chance of maternal complications (gestational diabetes, hypertensive syndrome, and major postpartum hemorrhage) and neonatal outcomes (cesarean delivery, macrosomia, and low Apgar score).
authors.affiliation: Setor de Alto Risco da Maternidade Darcy Vargas, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: Jean Carl
authors.initials: JC
authors.lastname: Silva
authors.affiliation: Curso de Graduação em Medicina, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: Augusto Radünz do
authors.initials: AR
authors.lastname: Amaral
authors.affiliation: Curso de Graduação em Medicina, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: Bruna da Silva
authors.initials: BD
authors.lastname: Ferreira
authors.affiliation: Curso de Graduação em Medicina, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: João Francisco
authors.initials: JF
authors.lastname: Petry
authors.affiliation: Curso de Graduação em Medicina, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: Mariana Ribeiro E
authors.initials: MR
authors.lastname: Silva
authors.affiliation: Curso de Graduação em Medicina, Universidade da Região de Joinville - UNIVILLE, Joinville, SC, Brasil.
authors.forename: Pâmella Caroline
authors.initials: PC
authors.lastname: Krelling