title: Obstetric and perinatal outcomes of teenage pregnancies in Thailand.
abstract: OBJECTIVE
  To determine whether, when controlling for confounding factors, there was still an association of adolescence with adverse outcomes.
  
  
  METHODS
  Retrospective case control study.
  
  
  METHODS
  Seven Bangkok Metropolitan Administration General Hospitals.
  
  
  METHODS
  Charts of all women aged 19 and younger (n = 1,354) having singleton live births in 2004, 2005, and 2006 were retrieved. For the adult group, 1,389 charts of mothers between the ages of 20 and 34 delivering singleton babies were selected using proportionate systematic random sampling. Maternal age was divided into 3 groups: 11-15, 16-19, and 20-34.
  
  
  METHODS
  Obstetric and perinatal outcomes.
  
  
  RESULTS
  After statistically controlling for known confounding factors, teenage pregnancy was associated with increased risks of anemia (11-15: AOR = 1.81, P < 0.001; 16-19: AOR = 1.48, P < 0.01), very preterm deliveries (11-15: AOR = 2.18, P < 0.05), very low birth weight babies (11-15: AOR = 6.98, P < 0.05; 16-19: AOR = 9.86, P < 0.01), newborn admission to Intensive Care Unit (11-15: AOR = 1.93, P < 0.01; 16-19: AOR = 2.10, P < 0.01), and postpartum complications (11-15: AOR = 3.33, P < 0.01). The rates of cesarean delivery (11-15: AOR 0.58, P < 0.01; 16-19: AOR = 0.57, P < 0.01), operative delivery (11-15: AOR = 0.49, P < 0.01), and oxytocin augmentation (16-19: AOR = 0.66, P < 0.01) were less frequent in younger mothers.
  
  
  CONCLUSIONS
  Independent of known confounding factors, teenage pregnancy was associated with increased risks of adverse maternal and neonatal outcomes requiring clinical and outreach interventions from health care providers.
authors.affiliation: Department of Obstetrics and Gynecology Nursing, Kuakarun College of Nursing, Dusit, Bangkok, Thailand.
authors.forename: Suparp
authors.initials: S
authors.lastname: Thaithae
authors.forename: Ratsiri
authors.initials: R
authors.lastname: Thato
mesh_terms: D000293:Adolescent; D000328:Adult; D000740:Anemia / Q000453:epidemiology; D001724:Birth Weight; D016022:Case-Control Studies; D002648:Child; D036861:Delivery, Obstetric / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D015931:Intensive Care, Neonatal / Q000706:statistics & numerical data; D008423:Maternal Age; D016017:Odds Ratio; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D011256:Pregnancy Outcome; D011253:Pregnancy in Adolescence / Q000706:statistics & numerical data*; D047928:Premature Birth / Q000453:epidemiology; D011644:Puerperal Disorders / Q000453:epidemiology; D012189:Retrospective Studies; D013785:Thailand / Q000453:epidemiology; D055815:Young Adult