This study aimed to evaluate the effectiveness of a school-based mental health education program in preventing adolescent suicide attempts in an impoverished urban area in Peru, as part of an Official Development Assistance project by the Korea International Cooperation Agency. The PRECEDE-PROCEED model informed the effectiveness study. In this intervention, the participants were first to fifth grade students in public secondary schools. The pre-post intervention survey was conducted with a stratified random sampling method. A sample of 768 and 738 students in experimental and control groups was analyzed comparatively, using chi-squared tests and logistic regression. This study found that the program had a positive effect on adolescent mental health-related risk behaviors and suicide attempts in the experimental group compared to the control group. Thus, the intervention may have helped prevent the increase in mental health-related risk behaviors and suicide attempts. Further, parental affection, when included in the intervention, had a significant effect on suicide attempts. As such, the involvement of parental affection in the intervention might be effective in preventing suicide attempts. To enhance the effectiveness of interventions aiming to prevent adolescent suicide, the participation and attention of parents, as well as adolescents, must be encouraged. Further, to maintain the effectiveness of the intervention and expand coverage to other schools in the neighborhood, a strategy for project sustainability is needed, particularly with regards to capacity-building in schools and communities.
Keywords: Korea International Cooperation Agency (KOICA); Official Development Assistance; PRECEDE-PROCEED; Peru; health education; mental health; school health; suicide.