School-Based Mental Health Interventions in Kenyan Cities: A Comparative Analysis of Adolescent Outcomes

School-based mental health interventions have shown promise in improving adolescent well-being globally. In Kenya’s urban centers, where access to mental healthcare is limited, such programmes can be particularly impactful. Participants were recruited from ten randomly selected secondary schools. Pre- and post-intervention surveys assessed mental health status using validated scales. Data analysis employed multivariate regression to explore the impact of the programme over time. A significant increase in self-reported coping strategies (p < 0.01) was observed among participants, indicating a positive shift towards more adaptive responses to stress and emotional challenges. The school-based mental health intervention demonstrated promising outcomes, particularly in enhancing adolescents' ability to cope with stress. Further research should explore the long-term effects of such interventions and their scalability across diverse urban populations. adolescents, Kenyan cities, mental health, coping strategies, school-based programmes Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.