A study in 15 Dutch high schools tested a comprehensive program to prevent depression and suicidal thoughts in adolescents aged 11-15. The program included screening, gatekeeper training, a serious game, and CBT sessions. Over 1,500 students participated, with half receiving the full program and half only screening and gatekeeper training.
After 12 months, the full program did not reduce suicidal thoughts or depressive symptoms. In fact, these outcomes increased slightly in the program group but not in the control group. However, the changes were small and not considered clinically meaningful. The study was conducted during the COVID-19 pandemic, which likely affected results.
Few high-risk students attended the CBT sessions, limiting the program's impact. The researchers note that the pandemic's disruptions may have overwhelmed any potential benefits. They caution against concluding the program is harmful, as the increase could be due to external factors.
This study shows that even well-designed prevention programs may not work during major societal disruptions. More research is needed in normal conditions to see if the approach could be effective. Schools should continue using evidence-based strategies for mental health support.