Intersecting impacts of ageing, migration, and socioeconomic disparities on health equity: a post-pandemic policy review

BACKGROUND: The COVID-19 pandemic exposed and intensified structural inequities at the nexus of ageing, migration, and socioeconomic vulnerability. These overlapping disadvantages resulted in uneven health outcomes and highlighted systemic fragilities in health systems; yet, few policy reviews have integrated these demographic dimensions into a single analytical framework. OBJECTIVES: This review critically examines how ageing, migration, and socioeconomic disparities intersect to shape health equity during and after the pandemic. It identifies structural bottlenecks, adaptive responses, and lessons for policy design in low- and middle-income as well as high-income contexts. METHODS: A systematic policy review was conducted following PRISMA 2020 guidelines and preregistered on the Open Science Framework. Peer-reviewed studies, institutional reports, and grey literature published between 2020 and 2024 were appraised using differentiated quality criteria. Thematic convergence, guided by the Social Determinants of Health, Human Capital Theory, and Feminist Gerontology, informed narrative synthesis across 49 included sources. RESULTS: A total of four intersecting themes emerged: (1) demographic inequality and uneven risk exposure; (2) exclusionary health systems and digital divides; (3) socioeconomic precarity and erosion of human capital; and (4) fragmented policy responses with limited ageing- and migrant-sensitivity. Comparative evidence underscores persistent inequities across regions, with gaps most pronounced in the Global South. CONCLUSION: Post-pandemic health equity demands integrated and anticipatory governance. Strengthened geriatric and migrant-inclusive health systems, expanded universal social protection, investment in digital and community infrastructure, and institutionalised intersectional policy design are essential to break cycles of cumulative disadvantage and advance health justice. This review uniquely integrates ageing, migration, and socioeconomic inequities into a unified framework across regions, offering theory-informed policy clusters to guide future governance. PROTOCOL REGISTRATION: The review protocol was prospectively registered on the Open Science Framework (OSF) under the DOI: https://doi.org/10.17605/OSF.IO/6YHC4 .