Understanding the role of religious beliefs in adherence to antiretroviral therapy among Pentecostal Christians living with HIV in sub-Saharan Africa: a scoping review

BACKGROUND: Optimum adherence to antiretroviral therapy (ART) is crucial in managing HIV. However, some people’s religious beliefs can influence how they deal with HIV and the psychosocial factors influencing their adherence to ART, such as disclosure, acceptance of HIV status, belief in ART, and depression. In sub-Saharan Africa (SSA), the role of religious beliefs in ART adherence is underexplored. We aimed to identify and conceptualize the literature on religious beliefs concerning ART adherence among Pentecostal Christians living with HIV in SSA. METHODS: We conducted a scoping review of the literature on religious beliefs and ART adherence. We searched papers from PubMed, Web of Science, Medline, Sabinet, Academic Search Complete, CINAHL Plus, Health Source/Nursing Academic, Scopus, and Google Scholar and published papers from conference proceedings and dissertations. Data were extracted according to a predetermined population, concept, context framework, and eligibility criteria for selecting or rejecting studies. We used a narrative synthesis to summarize the data on evidence and the impact of religious beliefs on ART adherence. RESULTS: Seven papers published between January 2010 and February 2022 met the inclusion criteria. Nineteen aspects of religious beliefs were identified as negatively influencing ART adherence, while eight aspects facilitated optimal adherence. “Being saved” or “born again” enhanced coping strategies for optimal adherence through actions such as less alcohol use, fidelity to a sexual partner(s), disclosure, acceptance of HIV status, reduced depression, and facilitated PLHIV to access social support from church members or other institutions. CONCLUSION: Religious beliefs are integral to Pentecostal Christians living with HIV and affect their adherence to ART. While some Pentecostal Christians living with HIV on ART use their religious beliefs and practices to access psychosocial support from other church members or organizations and achieve good clinical outcomes, others apply their religious beliefs and practices differently and compromise their commitments to taking ART as prescribed, thus experiencing poor viral suppression and clinical outcomes. However, more research is required to understand and theorize how religious beliefs impact ART adherence among Pentecostals living with HIV to inform guidelines for practitioners. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-023-16616-5.