Abstract
The discovery of innovative pharmacological preventative measures in Human Immunodeficiency Virus transmission has boosted optimism in the successful control of HIV/AIDS with the objective of eradication and the end of the epidemic. Hence, assessing the effect of pre-exposure prophylaxis (PrEP) on HIV prevention among key populations (KPs) is imperative in advancing the conversation on ending HIV/AIDs. This was a cross-sectional study using data from KPs (female sex workers (FSWs), men who have sex with men (MSM), and people who inject drugs (PWIDs) enrolled in Heartland Alliance Ltd/GTE One Stop Shops (OSS) between May 2019 and April 2023 in the six selected Nigerian states (Lagos, Bayelsa, Cross River, Akwa Ibom, Jigawa, and Niger). Data were cleaned in a spreadsheet and analyzed using IBM-SPSS version 28.0. Descriptive statistics, including frequency and percentage calculations, were conducted to analyze the dataset. Additionally, cross-tabulation analysis was performed, with a significance level set at 0.05, to explore relationships between variables. The study population comprised 13,580 participants, with 56.1% female. In all, 43.9% were aged 18-35 and 97.3% were single. Among the three KPs examined, FSW was the largest subgroup (50.8%), followed by MSM (28.1%) and PWID (21.1%). Most participants had been on PrEP for 0-3 months (87.8%), and PrEP was initiated for 81.6% due to high-risk sexual behaviors and 9.9% for serodiscordant relationship reasons. Most of them were enrolled in community healthcare settings (97.0%). The results showed that 99.9% remained HIV negative, while only two (0.01%) were seroconverted while on PrEP. The HIV-positive cases did not complete one-month PreP treatment, comprising an FSW and a PWID. Recent HIV contact or poor compliance with PrEP medication are two possible causes of seroconversion. The findings underscore the significance of integrating PrEP into a comprehensive HIV prevention approach, including newer molecules that will improve adherence and the necessity of ongoing monitoring and support for PrEP users. With these insights, there can be an advocacy for promoting PrEP among the KPs as a vital component of Nigeria's HIV prevention strategy.
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