Prevention of depression among Icelandic adolescents: a 12-month follow-up.

This paper reports the 12-month follow-up results regarding a program designed to prevent the initial episode of depression and/or dysthymia among Icelandic adolescents. This indicated prevention program was implemented in school settings for 14-15 year-old students judged to be "at risk" for depression because of the presence of some depressive symptoms and/or a negative attributional style. We previously reported (Arnarson & Craighead, 2009) that this program, when compared to treatment-as-usual, was effective in preventing the first episode of depression and/or dysthymia at 6-months following completion of the program. Survival analyses of the 12-month follow-up data indicated that the preventive effects were sustained at the end of 1 year following the completion of the prevention program with only 2 of the prevention program participants reporting an initial episode of MDD/DYS versus 13 of the TAU participants (χ(2)=5.02, p=.025). Using logistic regression, we also found that initial level of depressive symptoms significantly (p=.0330) predicted the first episode of depression and/or dysthymia among TAU subjects. The limitations of the study were noted, and future directions of research regarding prevention of depression were discussed.