Meta-analysis and Systematic Review on Philippine Mental Health and Climate Resilience: Basis for Designing Climate-Resilient Communities through Evidence-based Association of Southeast Asian Nations (ASEAN) Collaborative Strategies and Integrated Disaster Risk Reduction

Background: Climate change poses unprecedented challenges to community resilience across the ASEAN region, with the Philippines serving as a critical case for investigating links between environmental stressors and community mental health. This meta-analysis and systematic review examine how community-based mental health interventions strengthen climate resilience within disaster risk reduction and resilient infrastructure frameworks.Methods: Following PRISMA guidelines, we searched eight databases for literature published between 2010 and 2025. Quantitative synthesis used Review Manager (v5.4) and R (v4.4.3); qualitative analysis used MAXQDA (2020). GRADE assessment evaluated the certainty of evidence across primary outcomes.Results: Thirty-two studies (N=45,247) revealed substantial climate-related mental health impacts: pooled PTSD prevalence 35.2% (95% CI 28.6-42.1), depression 18.4% (95% CI 14.7-22.8), and anxiety 31.8% (95% CI 25.3-39.1). Meta-regression revealed that disaster type explained 45% of the heterogeneity variance (p < 0.01). Protective community factors significantly reduced the mental health burden, including social networks (OR=0.43, 95% CI 0.35-0.52), collective efficacy (OR=0.38, 95% CI 0.29-0.49), and cultural practices (OR=0.58, 95% CI 0.45-0.75). Infrastructure-integrated psychosocial support centers demonstrated 60% greater effectiveness in intervention compared to standalone programs (p < 0.001). Women, children, and indigenous communities experienced disproportionate impacts, requiring targeted interventions.Conclusions: Climate-induced mental health impacts require coordinated regional responses within integrated disaster risk reduction frameworks. Aligning with the Sendai Framework priorities, the findings support community-centered, culturally adapted interventions that combine immediate psychosocial support with resilient infrastructure development. ASEAN collaborative strategies are essential for strengthening community mental health systems and advancing Sustainable Development Goals through multi-hazard approaches.