title: Adolescent depressive symptoms and subsequent pregnancy, pregnancy completion and pregnancy termination in young adulthood: findings from the victorian adolescent health cohort study.
abstract: OBJECTIVE
  To examine relationships between depressive symptoms in adolescence (14-18 years of age) and becoming pregnant, completing a pregnancy (live birth) and terminating a pregnancy in young adulthood (21-24 years of age).
  
  
  METHODS
  Data from 1000 females were drawn from a larger sample of 1943 young Australians participating in a longitudinal study of adolescent health and development, followed across 8 waves from adolescence (waves 1-6) to young adulthood (waves 7 and 8).
  
  
  METHODS
  Victoria, Australia.
  
  
  METHODS
  Pregnancy, pregnancy completion and pregnancy termination between 21-24 years of age.
  
  
  RESULTS
  We observed a twofold increase in the odds of becoming pregnant in those reporting persisting patterns of depressive symptoms during adolescence (2+ waves); however, after staged adjustment for adolescent antisocial behaviour, drug use and socioeconomic disadvantage, there was no evidence of association. Of particular note, and consistent with previous research, adolescent antisocial and drug use behavior were strongly associated with becoming pregnant and pregnancy termination in young adulthood.
  
  
  CONCLUSIONS
  Adolescent antisocial and drug use behavior, not depressive symptoms, independently predict pregnancy outcomes in young adulthood.
authors.affiliation: Division of Mental Health, Norwegian Institute of Public Health, Oslo, Norway. wendy.nilsen@fhi.no
authors.forename: Wendy
authors.initials: W
authors.lastname: Nilsen
authors.forename: Craig A
authors.initials: CA
authors.lastname: Olsson
authors.forename: Evalill
authors.initials: E
authors.lastname: Karevold
authors.forename: Christina
authors.initials: C
authors.lastname: O'Loughlin
authors.forename: Maria
authors.initials: M
authors.lastname: McKenzie
authors.forename: George C
authors.initials: GC
authors.lastname: Patton
mesh_terms: D000028:Abortion, Induced / Q000706:statistics & numerical data*; D000293:Adolescent; D015986:Confounding Factors, Epidemiologic; D003863:Depression / Q000453:epidemiology / Q000523:psychology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D016017:Odds Ratio; D011247:Pregnancy; D011256:Pregnancy Outcome; D011253:Pregnancy in Adolescence / Q000523:psychology* / Q000706:statistics & numerical data; D018570:Risk Assessment; D012307:Risk Factors; D012919:Social Behavior; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000523:psychology; D014739:Victoria / Q000453:epidemiology; D055815:Young Adult