Abstract
This study was conducted to examine the 12-month effects on depression and depressive symptoms of a group-based cognitive-behavioral preventive intervention for middle school students (Positive Thoughts and Actions, or PTA), relative to a brief, individually administered supportive intervention (Individual Support Program, or ISP). A randomized clinical trial was conducted with 120 early adolescents (73 girls and 47 boys; age 12–14 years) drawn from a school-based population who had elevated depressive symptoms. Youths completed measures of depressive symptoms at baseline, post-intervention, and 6 and 12 months into the follow-up phase. Measures of internalizing problems, externalizing problems, school adjustment, interpersonal relationships, and health behavior were obtained from parents and/or youth. Multilevel models indicated that the effect of PTA on youth-reported depressive symptoms persisted until 12-month follow-up; d = 0.36 at post-intervention, d = 0.24 at 6-month follow-up, and d = 0.21 at 12-month follow-up. PTA youths also reported lower internalizing symptoms at post-intervention, d = 0.44, and at 12-month follow-up, d = 0.39. Time-limited effects were found for parent-reported internalizing symptoms and health behavior. Onset of new depressive episodes did not differ based on intervention group (21 % ISP; 17 % PTA). Results demonstrate support for the long-term efficacy of PTA, a cognitive-behavioral preventive intervention in which youths engage in personal goal-setting and practice social-emotional skills.
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This study was funded by the National Institute of Mental Health (R34 MH083076).
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Duong, M.T., Cruz, R.A., King, K.M. et al. Twelve-Month Outcomes of a Randomized Trial of the Positive Thoughts and Action Program for Depression Among Early Adolescents. Prev Sci 17, 295–305 (2016). https://doi.org/10.1007/s11121-015-0615-2
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DOI: https://doi.org/10.1007/s11121-015-0615-2