Differences in Sexual Behaviors, HIV Testing, and Willingness to Use PrEP between Gay and Bisexual Men Who Have Sex with Men in China

Abstract

Objectives: Accumulating evidence suggests that there may be differences in sexual behaviors, condom use, and HIV prevention service utilization (e.g., HIV testing, PrEP use) between gay and bisexual men, but this remains under-explored, especially among gay and bisexual men in China. Methods: We surveyed 4,142 gay and bisexual men on a geosocial networking app in China. Results: In adjusted model, bisexual men were less likely to have received HIV testing in their lifetime (AOR = .62, 95% CI [.53, .72]) or to have received a recent HIV test (AOR = .78, 95% CI [.68, .90]). Conversely, among those who reported having had anal sex in the past six months, bisexual men were more likely to report consistent condom use than gay men (OR = 1.38, 95% CI [1.17, 1.62]). Compared with gay men, bisexual men were significantly less likely to be aware of PrEP (AOR = .62, 95% CI [.52, .74]) and significantly less willing to use PrEP (AOR = .58, 95% CI [.46, .73]). Conclusions: Tailored HIV prevention interventions are needed to address bisexual men’s needs in the context of the unique sociocultural influences on sexual behavior in China.