This study focuses on evaluating the effectiveness of school-based nutrition interventions in improving adolescent nutrition status among urban schools in South Sudan. A comprehensive search strategy was employed using databases such as PubMed, Google Scholar, and relevant journals in the field of occupational medicine. Studies were selected based on predefined inclusion criteria related to school-based nutrition interventions targeting adolescents in urban South Sudanese schools. The meta-analysis utilised a random-effects model for pooling effect sizes. The analysis revealed that school-based nutrition interventions had a significant positive impact on adolescent weight gain, with an average improvement of 2% over the study period. School-based nutrition interventions appear to be effective in improving adolescent nutritional status. These findings support tailored educational and dietary programmes within schools as a viable strategy for addressing malnutrition in urban South Sudanese settings. Future research should focus on replicating these studies in diverse contexts and exploring the long-term effects of such interventions. Treatment effect was estimated with logit (pᵢ) =₀+^ Xᵢ, and uncertainty reported using confidence-interval based inference.
Anyanwu et al. (2003) studied this question.