title: Adolescents' adverse experiences and mental health in a prospective perspective.
abstract: OBJECTIVE
  The aim of this study is to examine the possible changes in depressive symptoms related to various adverse experiences, based on a three-year follow-up among adolescents.
  
  
  METHODS
  All 10(th) graders invited to enter the youth section of the Oslo Health Study 2001 (n = 3,811) constituted a baseline of a longitudinal study. A high level of mental distress (Hscl-10 score ≥ 1.85) according to the different life experiences was compared, at baseline (15 years) and follow-up (18 years).
  
  
  RESULTS
  All adverse experiences were associated with a high Hscl-10 score except parents not living together and death of a close person at 15 and 18 years for boys, and death of a close person at 18 years of age for girls. A development from high Hscl-10 score at baseline to low score at follow up was defined as recovery from mental distress. The proportion of the youth that had a high Hscl-10 score related to reporting adverse life experiences at age 15, followed by a low Hscl-10 score three years later proved to be between 44% and 89% among boys and between 16% and 31% among girls.
  
  
  CONCLUSIONS
  From a three year longitudinal perspective the recovery from mental distress is substantial and higher among boys than among girls. However, mental distress seems to persist in a considerable proportion of the adolescents. Consequently, it is insufficient to brush aside traumas and hurt and rely on a time healing process only.
authors.affiliation: Department of General Practice and Community Medicine, Section for General Practice, University of Oslo, Blindern, Oslo, Norway. o.r.haavet@medisin.uio.no
authors.forename: O R
authors.initials: OR
authors.lastname: Haavet
authors.forename: Å
authors.initials: Å
authors.lastname: Sagatun
authors.forename: L
authors.initials: L
authors.lastname: Lien
mesh_terms: D000293:Adolescent; D003863:Depression / Q000453:epidemiology / Q000209:etiology / Q000523:psychology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008016:Life Change Events; D008137:Longitudinal Studies; D008297:Male; D001523:Mental Disorders / Q000517:prevention & control; D008603:Mental Health; D009664:Norway / Q000453:epidemiology; D011446:Prospective Studies; D012742:Sex Offenses / Q000523:psychology; D012959:Socioeconomic Factors; D013315:Stress, Psychological / Q000150:complications / Q000453:epidemiology / Q000523:psychology*; D011795:Surveys and Questionnaires; D013997:Time Factors; D014754:Violence / Q000523:psychology