Prevalence rates and identification of nonconsensual sexual experiences among gay, bisexual, and other men who have sex with men in Canada

Gay, bisexual, and other men who have sex with men (GBMSM) have been identified as a population at higher risk of experiencing non-consensual sexual experiences (NSEs). However, previous research studies examining the prevalence of NSEs in this population have been limited by inconsistent terminology and a lack of research on the topic. The main focus of this study was to compare the effectiveness of using self-labels versus behavioural indicators to measure the prevalence of NSEs experienced in adulthood in GBMSM and contribute to more accurate prevalence rates in the Canadian context. A total of 346 participants were recruited from various social media platforms in Canada. The study used a two-part question that asked participants if they had ever been sexually assaulted or raped, followed by a question about other nonconsensual sexual experiences. The study also used a formal behavioural measure, the Sexual Experiences Survey, to assess the prevalence of NSEs. The results indicated that a two-part question and the formal measure reported similar prevalence rates of NSEs—64.5% and 66.8% respectively. Overall prevalence of NSEs was very high in this sample, and people of colour and trans men reported even higher rates. Depending on the context, the parsimonious choice of questioning persons on the NSE history may be valid, however, only if applied in the context of asking for rape and assault as well as other NSEs that may not be captured by these definitions. The study highlights the importance of using consistent terminology and effective measurement methods when studying the prevalence of NSEs in GBMSM. These findings may have important implications for developing interventions and for obtaining more accurate prevalence rates in a variety of settings without having to use a longer, more formalized measure.