Results
We collected 204 questionnaires. Of these, 196 were included in the final analysis, while 8 (3.9%) respondents with missing or unspecified sexual orientation were excluded. The majority of participants were heterosexual 59.7%, with 31.1% identifying as homosexual and 9.2% as bisexual. Of the 196 participants, 54.6% were male, and 45.4% were female. The median respondent age was 29.5 years (IQR: 25.0–36.8 years), and most respondents had higher education (61.7%). Compared to heterosexual respondents, SMIs reported more sexual partners (median 4 vs. 1; p < 0.001), more often reported condomless sexual intercourse or condom failure with a partner of unknown serological status (69.6% vs. 26.5%; p < 0.001), and more often had been tested for HIV (74.7% vs. 31.6%; p < 0.001). Moreover, SMIs were more likely to report STIs, particularly syphilis (p = 0.004), chlamydia (p = 0.004), gonorrhea (p < 0.001), and pubic lice (p = 0.028). SMIs were more aware of HIV prevention strategies, including being more familiar with HIV PEP (77.2% vs. 30.8%; p < 0.001) and doxy-PEP (54.4% vs. 18%; p < 0.001). In univariable analyses, SMI participants had higher prevalence of doxy-PEP awareness (PR 3.03, 95% CI: 1.96–4.69; p < 0.001) and self-reported STI history (PR 9.43, 95% CI: 3.90–22.83; p < 0.001). In multivariable analyses, previous HIV testing was independently associated with awareness of HIV PrEP (aPR 1.97, 95% CI: 1.32–2.93; p < 0.001), HIV PEP (aPR 1.89, 95% CI: 1.20–2.96; p = 0.006), and doxy-PEP (aPR 2.12, 95% CI: 1.10–4.07; p = 0.025), while SMIs remained independently associated with HIV PEP awareness (aPR 1.60, 95% CI: 1.04–2.45; p = 0.031).
