HIV testing benefits those who test positive, allowing them to receive treatment, but the benefits for those who test negative remain controversial. We evaluated the impact of testing on HIV knowledge and sexual risk among men in South Africa. Men were recruited from townships outside
Cape Town and completed a survey that assessed testing history, knowledge, and sexual behaviours. Among the 820 participants, 516 (63%) reported being tested (82% tested negative, 6% tested positive, and 12% unknown). Compared to those who had never been tested for HIV, men who tested for
HIV were more knowledgeable about HIV transmission, but did not differ on sexual risk behaviour. Knowledge moderated the effect of testing on sexual risk such that men reported fewer sexual partners (incidence rate ratio (IRR) = 0.91, 95% CI = 0.84, 0.98) and fewer unprotected anal sex events
(IRR = 0.81, 95% CI = 0.66, 1.00) if they had been tested for HIV and were knowledgeable about HIV transmission. For men testing HIV-negative, knowledge predicted fewer sexual risk behaviours. Previous HIV testing is associated with enhanced knowledge, which moderates sexual risk behaviour
among South African men living in Cape Town. Results suggest that HIV testing may increase knowledge and lead to reductions in sexual risk even when results are negative.
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Centers for Behavioral and Preventive Medicine, The Miriam Hospital, CORO West, Suite 309, 164 Summit Avenue, Providence, Rhode Island, USA 2:
Department of Behavioral and Social Sciences, School of Public Health, Brown University, Box G-S121-5, Providence, Rhode Island, 02912, USA 3:
Department of Psychology, University of Connecticut, 406 Babbidge Road, Unit 1020, Storrs, Connecticutt, 06269-1020, USA 4:
Human Sciences Research Council, Private Bag X9182, Cape Town, 8000, South Africa
Publication date: 2013-12-01
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