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Randomized Controlled Trial
. 2020 Jul 24;18(1):188.
doi: 10.1186/s12916-020-01656-0.

Randomized control trial testing the effectiveness of implemented depression prevention in high-risk adolescents

Affiliations
Randomized Controlled Trial

Randomized control trial testing the effectiveness of implemented depression prevention in high-risk adolescents

Karlijn W J de Jonge-Heesen et al. BMC Med. .

Abstract

Background: Adolescent depression is a global mental health concern. Identification and effective prevention in an early stage are necessary. The present randomized, controlled trial aimed to examine the effectiveness of Cognitive Behavioral Therapy (CBT)-based depression prevention in adolescents with elevated depressive symptoms. This prevention approach is implemented in school communities, which allows to examine effects under real-life circumstances.

Methods: A total of 5222 adolescents were screened for elevated depressive symptoms in the second grade of secondary schools; 130 adolescents aged between 12 and 16 years old (M = 13.59; SD = 0.68; 63.8% girls) were randomly assigned to the experimental (OVK 2.0) or control condition (psycho-education). Self- and parent-reported depressive symptoms were assessed at pretest and post intervention, as well as 6- and 12-months follow-up. Clinical assessment of depression was assessed at pretest and 6-months follow-up.

Results: Intent-to-treat analyses revealed that the decrease in adolescent-rated depressive symptoms was significantly larger in the intervention condition than in the control condition. There was no significant difference in decrease of parent-rated depressive symptoms between both conditions.

Conclusions: Based on the findings, we recommend the implementation of screening and prevention in schools, according the basics of this study design. Since this is a new step forward, we discuss the clinical impact and challenges, as well possibilities for future research.

Trial registration: The study is registered in the Dutch Trial Register for RCT's ( NTR5725 ). Date registered: 11 March 2016.

Keywords: Adolescence; Cognitive behavioral therapy; Depression; Prevention; School.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Flow diagram of participants
Fig. 2
Fig. 2
Mean scores of adolescent-reported depressive symptoms over time in the experimental and control condition
Fig. 3
Fig. 3
Mean scores of parent-rated depressive symptoms over time in the experimental and control condition

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