Incidence of and risk factors for sexual orientation-related physical assault among young men who have sex with men.

Objectives: We sought to determine incidence of, prevalence of, and risk factors for sexual orientation-related physical assault in young men who have sex with men (MSM).

Methods: We completed a prospective open cohort study of young MSM in Vancouver, British Columbia, surveyed annually between 1995 and 2004. Correlates of sexual orientation-related physical assault before enrollment were identified with logistic regression.

Randomized clinical evaluation of self-screening for anal cancer precursors in men who have sex with men.

Background: Self-collection of anorectal swab specimens could greatly facilitate the completion of prerequisite studies and future implementation of anal cancer screening among men who have sex with men (MSM). We therefore compared self- versus clinician- collection procedures with respect to specimen adequacy for cytological evaluation, concordance of paired cytological results, and concordance of cytological with biopsy results.

Methods: Paired self- and clinician- collected anorectal Dacron swabs for liquid-based (Thin Prep) cytological evaluation were collected in random sequence from a mostly HIV-1 seronegative cohort of young MSM in Vancouver.

Illustrated instructions for self-collection of anorectal swab specimens and their adequacy for cytological examination.

Background: Self-collection of anorectal swab specimens would facilitate screening for anal cancer precursors and sexually transmitted rectal infections among men who have sex with men (MSM). However, pictorial guides for self-collection were not previously available.

Goals: Develop and field test a set of illustrated self-collection instructions.

Crystal methamphetamine and ecstasy differ in relation to unsafe sex among young gay men.

Objective: Poly-substance use in gay social ('club') settings is common. Recent studies suggest a link between 'club' drug use and sexual risk behaviours. In this qualitative study, we compare and contrast two 'club' drugs: crystal methamphetamine and ecstasy (MDMA).

Non-consensual sex experienced by men who have sex with men: prevalence and association with mental health.

Little is known about the psychosocial factors associated with sexual assault experienced by males. Men (N=358), 19-35 years of age, recruited by community outreach, completed questionnaires. Eligibility criteria included: being HIV-negative and self-identifying as gay or bisexual.