Bridging Financial Inclusion and Health Equity in LMICs: Evidence from a Half-Century of Bibliometric Data.

Health equity and financial inclusion (FI) are at the core of the Sustainable Development Goals, yet their intersection remains critically under-studied. This bibliometric study maps this emergent and fragmented field by analyzing 24,140 publications from Scopus, PubMed, Web of Science, and Lens.org over five decades. Employing co-citation and co-word analysis via VOSviewer, chart research trends, governance frameworks, and policy linkages were systematically presented. The analysis reveals that less than 0.3% of the identified literature explicitly bridges financial inclusion with health outcomes, and direct investigations into health equity are virtually absent. Despite recent growth, fundamental gaps persist, including a lack of empirical studies on digital financial tools in low- and middle-income countries (LMIC) health contexts and insufficient focus on disadvantaged populations. As the first comprehensive empirical mapping of this nexus, this study underscores the urgency for scholarly and policy action to strategically leverage financial instruments for equitable healthcare access. The findings provide a foundational map and a structured agenda to consolidate this nascent field.