Outcome of depressive and anxiety disorders among young adults: Results from the Longitudinal Finnish Health 2011 Study.

Purpose of the study: We investigated the outcomes and outcome predictors of depressive and anxiety disorders in a general population sample of young adults with a lifetime history of these disorders.Materials and methods: The study sample was derived from a nationally representative two-stage cluster sample of Finns aged 19-34 years. The original study was carried out in 2003-2005, and the follow-up in 2011. We investigated participants diagnosed with a depressive or anxiety disorder based on a SCID interview (excluding those with only a single specific phobia) (DAX-group, N=181). The control group included those with no DSM-IV- diagnosis (N=290). They were followed up with the M-CIDI interview assessing 12-month depressive and anxiety disorders in 2011.Results: In 2011, 22.8% of the DAX-group was diagnosed with a depressive or anxiety disorder compared to 9.8% of the control group. Education was lower and quality of life worse in the DAX-group than in the control group. Those participants of the DAX-group who received a diagnosis in 2011 had poorer quality of life than those in remission, which emphasizes the influence of a current disorder on the quality of life. Higher score in the Mood Disorder Questionnaire (MDQ) at baseline predicted poorer quality of life in 2011.Conclusions: Thus, depressive and anxiety disorders were persistent/recurrent in one quarter of participants, significantly affecting education and quality of life. Young adults with these disorders need support to achieve their academic goals.