Depression is a major public health concern. In Dutch adolescents, the prevalence of major depressive disorder is estimated at 3.8%, and one in five adolescents report depressive symptoms. Depression is a risk factor in adolescent suicide. School-based prevention programs, for example the STORM approach, are effective in decreasing depressive symptoms among adolescents with elevated depressive symptoms at screening. However, not all adolescents attend general education. In the Netherlands, 7% of all adolescents enters special education (voortgezet speciaal onderwijs and prakijkonderwijs). They form a vulnerable subgroup concerning developing depressive symptoms and suicidality. To adapt and implement programs for these students, is complex yet crucial. This study aims to screen adolescents, offer them a prevention program to prevent the onset or continuation of depression and evaluate the effectiveness of this program. It is a randomised controlled trial with two conditions. The main study parameter is depressive symptomatology. Secondary study parameters are suicidality, anxiety and somatic complaints. Eligible students enter the second or third grade of special education, presenting elevated depressive symptoms. All adolescents will be screened for depressive and suicidal symptoms. Those reporting suicidality will be guided to specialised care, together with their parents. Adolescents with elevated depressive symptoms in the experimental condition will be offered the CBT-based preventive group training Op Volle Kracht in their school setting. The control condition consists of monitoring, and is offered the training if the intervention has shown to be effective. Participants will fill in longitudinal measurements. At all times, adolescents will be guided to mental health care if necessary. Furthermore, teachers in all participating schools will attend a training on how to detect and address depressive and suicidal symptoms among adolescents. The potential value of the study is that we can offer adolescents in the special educational sector a prevention program that is proven to be effective. In order to achieve this goal we need to evaluate the effectiveness of this prevention program in this target group. We are of opinion, however, that the risks associated with participation can be considered negligible. It is specifically aimed at depressive symptoms, within a population which receives care for other problems.
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Depressive symptoms in children and adolescents
Timeframe: Depressive symptoms will be measured at the screening, at T0 (baseline), T1 (12 weeks), T2 (6 months), and T3 (12 months).