title: Age group differences among pregnant adolescents: sexual behavior, health habits and contraceptive use.
abstract: OBJECTIVE
  To determine differences in sexual behavior, health habits and contraceptive use among three age groups of pregnant adolescents.
  
  
  METHODS
  Prospective study of pregnant adolescents participating in face-to-face interviews including questions about demographic background, sexual behavior, health history and contraceptive use.
  
  
  METHODS
  Urban prenatal clinic.
  
  
  METHODS
  300 pregnant adolescents attending their first prenatal appointment.
  
  
  METHODS
  Sexual behavior, health history and contraceptive use.
  
  
  RESULTS
  Our cohort of pregnant adolescents included 61 (20%) 12-15-year-olds, 113 (38%) 16-17-year-olds and 126 (42%) 18-19-year-olds. A greater proportion of 12-15-year-olds were currently in school (90%) compared with 16-17-year-olds (48%) and 18-19-year-olds (38%) (P = 0.01). Of the18-19-year-olds, 41% had a previous pregnancy compared with 3% of 12-15-year-olds (P = 0.01). The youngest age group also had the lowest proportion of any drug use (25%). Contraceptive use (ever) was lower for 12-15-year-olds (46%) compared with 16-17-year-olds (59%), and 18-19-year-olds (66%) (P < 0.01). Reasons for not using contraception at the time of conception also differed by age with 9% of the youngest group reporting they wanted to get pregnant compared with 27% of the 18-19-year-old group (P = 0.01).
  
  
  CONCLUSIONS
  Sexual behavior, health habits and contraceptive use in pregnant adolescents differed by age group. Understanding that there are distinct risk behaviors associated with teen pregnancy among these three separate age groups will enhance the thoughtful development and evaluation of programs and policies targeted at preventing first pregnancies and repeat pregnancies in adolescents.
authors.affiliation: Department of Obstetrics and Gynecology and Community Health, The Warren Alpert Medical School of Brown University, Rhode Island, USA. mphipps@wihri.org
authors.forename: Maureen G
authors.initials: MG
authors.lastname: Phipps
authors.forename: Cynthia
authors.initials: C
authors.lastname: Rosengard
authors.forename: Sherry
authors.initials: S
authors.lastname: Weitzen
authors.forename: Ann
authors.initials: A
authors.lastname: Meers
authors.forename: Zoe
authors.initials: Z
authors.lastname: Billinkoff
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003268:Contraception Behavior / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D005260:Female; D015438:Health Behavior; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007407:Interviews as Topic; D011247:Pregnancy; D011446:Prospective Studies; D012309:Risk-Taking; D012725:Sexual Behavior / Q000706:statistics & numerical data*; D014505:Urban Population