Uptake and willingness to use PrEP among Chinese men who have sex with men with experience of sexualized drug use
Abstract Background Sexualized drug use (SDU, use of any psychoactive substance before/during sexual intercourse) is prevalent among men who have sex with men (MSM). This study investigated uptake and willingness to use pre-exposure prophylaxis (PrEP) among MSM with experience of SDU. Methods A total of 580 Hong Kong Chinese speaking MSM self-reported to be HIV negative/unknown sero-status completed a cross-sectional anonymous telephone interview. Results Of the participants, 107 (18.4%) and 56 (9.7%) had experience of SDU and chemsex in their lifetime. The prevalence of PrEP use was 4.0% among all participants and 12.1% among those with experience of SDU. Among MSM with experience of SDU who were not on PrEP (n=94), 59.6% were willing to use daily oral PrEP in the next six months. After adjustment for significant background variables (age group, HIV testing in the past year, and anal intercourse with non-regular male sex partners), having ≥3 episodes of SDU per month (adjusted odds ratios (AOR): 3.87, 95%CI: 1.01, 15.28), presence of condomless anal intercourse during SDU (AOR: 2.96, 95%CI: 1.03, 9.55), positive attitudes toward PrEP (AOR: 2.01, 95%CI: 1.37, 2.95), perceived support from significant others to use PrEP (AOR: 11.63, 95%CI: 3.93, 34.37)), and perceived behavioral control of using PrEP (AOR: 20.82, 95%CI: 6.51, 66.64) were significantly associated with higher willingness to use PrEP. Conclusion MSM with experience of SDU are potential good candidates of PrEP implementation. Effective strategies to increase PrEP coverage are needed even if affordable PrEP became available, future health promotion may make use of HIV testing and counseling settings and modify perception related to PrEP.