INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN SOCIAL SCIENCE (IJRISS)
ISSN No. 2454-6186 | DOI: 10.47772/IJRISS | Volume IX Issue XI November 2025
especially low penetration of the informal sector. Low enrollment undermines pooling and financial protection
objectives.
Furthermore, Aregbeshola et al. (2018) observed low enrollment even among productive age women Odeyemi
(2014) in particular said Community Based Health Insurance (CBHI) models in Nigeria's National Health
Insurance Scheme face challenges due to inadequate funding, lack of involvement of beneficiaries, and inequity
in coverage.
Financial Protection and the Vulnerable Group Fund (VGF)
Legally, the institutional Reform through the NHIA Act (2022) transformed Nigeria's health insurance
architecture by creating a centralized regulator with the power to mandate enrollment, standardize the benefits
package, and establish financing mechanisms including the Vulnerable Group Fund (VGF). This legal reform is
widely seen as a necessary but not sufficient condition for achieving Universal Health Coverage (UHC).
The VGF is a central policy mechanism introduced to subsidize or fully cover services for the poorest and most
vulnerable (pregnant women, children, elderly, persons with disabilities). Early policy analysis suggests the VGF
has strong equity intent but requires robust targeting, funding, and monitoring to deliver on its promise.
Similarly, Ilesanmi et al. (2023) and T. Ipinnimo et al. (2022) also observed that The National Health Insurance
Authority Act, 2022, makes health insurance mandatory for all Nigerians and introduces vulnerable group funds,
potentially ensuring safer and more equitable Universal Health Coverage.
Service Delivery and Supply-Side Constraints
The literature highlights supply-side barriers, weak primary health care infrastructure, human resource shortages,
drug stock-outs, and inconsistent reimbursements, that reduce the attractiveness of insurance for both users and
providers.
Governance, Financing Flows, and Subnational Variation
State-level heterogeneity is a dominant finding: successful scale-up correlates strongly with state political will,
budgetary commitment, and administrative capacity. Delays in fund releases, weak claims management, and
governance gaps are recurring problems that limit scheme credibility and reach. Okafor et al. (2019)
acknowledged that The National Health Insurance Scheme in Nigeria faces challenges like inadequate funding
and awareness, and suggests diversification of funding sources and increased public awareness to achieve
Universal Healthcare Coverage by 2015
Uguru et al. (2024) on the other hand Observed that the Nigerian government’s implementation of the National
Health Insurance Scheme (NHIS) to address the issue of accessibility, affordability, and availability). They study
which was a cross-sectional in design using mixed-methods, that is, qualitative and quantitative with Enugu state
as a case study a randomly selected 296 enrollees and 6 purposely components, examined whether the NHIS
was a viable pathway to sustained access to medicines in Nigeria. The quantitative result was that 94.9% of
respondents sought medical help. … “78.4% of the respondents indicated that the scheme improved their access
to care (accessibility, affordability, and availability).” While qualitatively “the NHIS had marginally improved
access to medicine over the years. It was also observed that most of the staff in NHIS-accredited facilities were
not adequately trained on the scheme’s requirements and that most times, essential drugs were not readily
available at the accredited facilities.” In conclusion they said though the National Health Insurance Scheme
(NHIS) has improved access to medicine in Nigeria, but staff training is needed to ensure sustainable access to
healthcare services.
Gaps and Research Needs
Three major evidence gaps stand out: (1) rigorous quantitative impact evaluations measuring changes in
catastrophic expenditure and health outcomes; (2) operational research on sustainable enrollment strategies for
informal workers; and (3) empirical assessments of VGF targeting effectiveness and fiscal sustainability.
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