OBJECTIVES:Men who have sex with men (MSM) report challenges to accessing appropriate health care. We sought to understand the relationship between disclosure of same-sex sexual activity to a health care practitioner (HCP), sexual behaviour and measures of sexual health care. METHODS:Participants recruited through community venues and events completed a questionnaire and provided a blood sample. This analysis includes only individuals with self-reported HIV negative or unknown serostatus. We compared participants who had disclosed having same-sex partners with those who had not using chi-square, Wilcoxon Rank Sum and Fisher's exact tests and used logistic regression to examine those variables associated with receiving an HIV test. RESULTS:Participants who had disclosed were more likely to have a higher level of education (p<0.001) and higher income (p<0.001), and to define themselves as "gay" or "queer" (p<0.001). Those who had not disclosed were less likely to report having risky sex (p=0.023) and to have been tested for HIV in the previous two years (adjusted odds ratio 0.23, 95% confidence interval: 0.16-0.34). There was no difference in undiagnosed HIV infection (3.9% versus 2.6%, p=0.34). Individuals who had disclosed were also more likely to have been tested for gonorrhea and syphilis, and more likely to have ever been vaccinated against hepatitis A and hepatitis B (p<0.001 for all).CONCLUSIONS: While generally reporting lower risk behaviour, MSM who did not disclose same-sex sexual activity to their HCP did have undiagnosed HIV infections and were less likely to have been tested or vaccinated. Strategies to improve access to appropriate sexual health care for MSM are needed.

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Objectives Nonoccupational post-exposure prophylaxis (nPEP) is a strategy to reduce the risk of HIV infection in those with high-risk exposure. This study characterized nPEP awareness among gay, bisexual and other men who have sex with men (MSM) in Metro Vancouver, British Columbia, Canada after a pilot nPEP programme established in 2012. Methods Momentum Health Study participants were MSM aged >16 years recruited via respondent-driven sampling (RDS) who completed a computer-assisted self-interview. Stratifying patients by HIV status, we used multivariable logistic regression with backward selection to identify factors associated with nPEP awareness. All analyses were RDS-adjusted. Results A total of 51.9% (112 of 173) of HIV-positive and 48.5% (272 of 500) of HIV-negative participants had heard of nPEP. Only 3% (five of 106) of HIV-negative participants who reported recent high-risk sex used nPEP. Generally, nPEP awareness was higher for participants who engaged in sexual activities with increased HIV transmission potential. Other factors associated with greater awareness among HIV-negative participants included recent alcohol use, higher communal sexual altruism, previous sexually transmitted infection (STI) diagnosis, and greater perceived condom use self-efficacy. Factors associated with greater awareness among HIV-negative participants included white race/ethnicity, gay sexual identity, more formal education, higher personal sexual altruism, and Vancouver residence. Greater nPEP awareness among HIV-positive participants was associated with greater perceived agency to ask sexual partners’ HIV status and more frequently reporting doing so, a higher number of lifetime receptive sex partners, and greater access to condoms. Conclusions Following implementation of an nPEP pilot programme, nPEP awareness among HIV-negative MSM was 51% and use was 3%. These data support the need to expand access to and actively promote nPEP services.