The whole prospective study sample consisted of 63 adolescents aged 13 to 18 years (40 girls and 23 boys)referred for psychiatric treatment to the adolescent psychiatric inpatient unit of Kuopio University Hospital, Finland. This study is part of the "Kliininen Laatuprojekti"- Depression Project in Kuopio University Hospital. Researcher UH, Doctor of Philosophy, has been the head of the study project. She has done this study by carrying, analysing, doing articles and writing abstracts and keeping lectures and congress sessions in Finland and aboard. In the same time she has done clinical work by caring adolescents in the hospital ward and in the therapy settings. UH has been the first writer in the articles, one article in national and three in international articles. This Doctoral dissertation has been presented 17th November 2007, supervisor was professor, MD. Mauri Marttunen.