title: To evaluate the effect of pre-pregnancy body mass index on maternal and perinatal outcomes among adolescent pregnant women.
abstract: OBJECTIVE
  To evaluate the effect of pre-pregnancy body mass index on maternal and perinatal outcomes among adolescent pregnant women.
  
  
  METHODS
  We conducted this prospective cross-sectional study on 365 singleton adolescent pregnancies (aged between 16 and 20 years) at a Maternity Hospital, between December 2014 and March 2015. We divided participants into two groups based on pre-pregnancy body mass index (BMI): overweight and obese adolescent (BMI at or above 25.0 kg/m) and normal weight (BMI between 18.5 and 24.99 kg/m) adolescent. We used multivariate analysis to evaluate the association of the risk of adverse pregnancy outcomes and pre-pregnancy BMI.
  
  
  RESULTS
  The prevalence of maternal overweight/obesity and normal weight was 34.6% (n = 80) and 65.4% (n = 261) in the study population, respectively. Compared with normal-weight teens (n = 234), overweight/obese teens (n = 71) were at higher risk for cesarean delivery (odds ratio [OR] 0.7, 95% confidence interval [CI] 0.4-1.4), preeclampsia (adjusted odds ratio [OR] 0.1, 95% confidence interval [CI] 0.02-0.9) and small of gestational age (odds ratio [OR] 0.2, 95% confidence interval [CI] 0.1-0.9).
  
  
  CONCLUSIONS
  BMI increased during pre-pregnancy could be an important preventable risk factor for poor obstetric complications in adolescent pregnancies, and for these patients prevention strategies (e.g., nutritional counseling, weight-loss, regular physical activity) for obesity are recommended before getting pregnant.
authors.affiliation: a Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey.
authors.forename: Hatice
authors.initials: H
authors.lastname: Kansu-Celik
authors.affiliation: a Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey.
authors.forename: Burcu
authors.initials: B
authors.lastname: Kisa Karakaya
authors.affiliation: a Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey.
authors.forename: Ali Irfan
authors.initials: AI
authors.lastname: Guzel
authors.affiliation: a Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey.
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Tasci
authors.affiliation: a Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey.
authors.forename: Salim
authors.initials: S
authors.lastname: Erkaya
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D016022:Case-Control Studies; D002585:Cesarean Section / Q000706:statistics & numerical data; D003430:Cross-Sectional Studies; D005260:Female; D005865:Gestational Age; D006801:Humans; D009765:Obesity / Q000453:epidemiology*; D050177:Overweight / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D011256:Pregnancy Outcome / Q000453:epidemiology*; D011253:Pregnancy in Adolescence; D011446:Prospective Studies; D012307:Risk Factors; D055815:Young Adult
keywords: Adolescent pregnancy; adverse perinatal outcomes; increased body mass index; overweight and obesity