Abstract
BACKGROUND: Sexuality is multidimensional and complex, and involves identity development, attraction, and behavior. Heterosexual-identified men who have sex with men (H-MSM) experience sexual identity and behavior discordance, yet it is unknown how H-MSM compare to concordant heterosexual men and gay, bisexual, and queer (GBQ+) men in terms of sexuality constructs. OBJECTIVE: This study aims to survey adult cisgender men in Canada, the United States, and the United Kingdom to gain greater insights into how demographics, identity development, attraction, behavior, technology use, relationship negotiation and communication skills, and pre-exposure prophylaxis and life satisfaction relate to each other, and then to interview H-MSM for an in-depth follow-up on survey concepts. METHODS: Purposive sampling will be used to recruit men via online and offline venues. Data collection will be multifaceted and include an online questionnaire for adult cisgender men and a subsequent interview for H-MSM. The survey will be available in English, French, and Spanish. Structural equation modeling, underpinned by hegemonic masculinity and sexual script theories, will be performed to test the relationships among survey variables. Interpretive phenomenology will be employed on the qualitative data to consider how unique sociocultural factors influence the sexuality and experiences of H-MSM, allowing for similarities and differences across participants to be identified and explored. RESULTS: Data collection began on November 26, 2024, and as of February 2025, data collection remains ongoing. We expect to conclude data collection and data cleaning by mid-summer 2025. Data analysis will begin in fall 2025. Our findings will provide a more nuanced understanding of the identity development, attraction, behavior, relationship negotiation, and technology use of H-MSM in comparison with GBQ+ men and concordant heterosexual men. CONCLUSIONS: This research aims to broaden the scope of existing literature and support advancements in interventions and knowledge to support the overall health and well-being of H-MSM. An examination of potential differences among H-MSM, concordant heterosexual men, and GBQ+ men aims to improve the understanding of H-MSM as a distinct population, without dismissing them as closeted GBQ+ men. This study aims to provide key insights into avenues for research and practice with men whose sexuality and sexual behaviors may be outside of commonly accepted norms. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/66897.