Depression and anxiety are prevalent among Nigerian adolescents, highlighting a need for effective school-based mental health interventions. A comprehensive systematic review and meta-analysis were conducted using electronic databases to identify relevant studies, including randomized controlled trials (RCTs) and quasi-experimental designs. Studies published between and were included if they met predefined inclusion criteria. The analysis identified a moderate effect size for school-based interventions on reducing depressive symptoms (d = 0. 69, 95% CI: 0. 48, 0. 90) and anxiety levels (d = 0. 72, 95% CI: 0. 41, 1. 03). School-based mental health interventions appear effective in reducing depression and anxiety among Nigerian adolescents over a three-year period. Implementing these interventions should be prioritised by educational authorities to improve adolescent mental well-being. Meta-analysis, school-based interventions, depression, anxiety, Nigeria
Chikere et al. (Sun,) studied this question.