Abstract
HIV self-testing is an effective tool to improve diagnostic coverage in key populations, enabling linkage to care and access to antiretroviral therapy. Its implementation requires better understanding of patients' perspectives on this novel strategy. The aim of the study was to investigate the perception of men who have sex with men (MSM) regarding the HIV oral fluid self-test (HIVST) in São Paulo, Brazil, and to analyse the sociodemographic characteristics and testing strategy preferences of individuals registered to undertake HIVST. Preceding the implementation of HIVST use as public policy in 2019, we recruited MSM living in São Paulo to undertake HIVST using a digital platform, and investigated their sociodemographic profiles, testing experiences and testing preferences. Results were compared according to reported lifetime HIV testing. A total of 6477 MSM (median age 28years) were recruited to the study from April 9th to December 31st, 2018. Seventy-eight per cent reported previous HIV testing. The opening hours of health facilities (53%), concern about disclosing intimate personal information to health care providers (34%) and fear of stigma (21%) were reported as the main barriers to testing. Older age, higher education, illicit drug use and self-identifying as gay were associated with prior HIV testing (P<0.001). Most participants (67%) were unaware that HIVST was available before enrolling in the study. Preference for HIVST over other testing technologies was higher among those never tested (71%) than among participants with previous HIV testing (61%; P<0.001). HIVST was found to be an effective tool to improve testing uptake among MSM, particularly those who had never been tested before. Characterization of the most likely users of HIVST among MSM will help to inform implementation and scaling up of this novel testing method in the Brazilian public health system.
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