title: Gay men who engage in group sex are at increased risk of HIV infection and onward transmission.
abstract: Among 746 participants in the Three or More Study (TOMS) of gay men who engaged in group sex in the previous 6 months, 22.4% reported unprotected anal intercourse (UAI) with any partners they did not know to be the same HIV serostatus as themselves. Not knowing oneself to be HIV-negative, not having a clear intention to use condoms, and more frequent group sex were independently associated with UAI. This study shows that gay men who engage in group sex represent an important priority for targeted HIV prevention activities and research.
authors.affiliation: National Centre in HIV Epidemiology and Clinical Research, University of New South Wales, 376 Victoria Street, Darlinghurst, Sydney, NSW 2010, Australia. gprestage@nchecr.unsw.edu.au
authors.forename: Garrett P
authors.initials: GP
authors.lastname: Prestage
authors.forename: Jeff
authors.initials: J
authors.lastname: Hudson
authors.forename: Ian
authors.initials: I
authors.lastname: Down
authors.forename: Jack
authors.initials: J
authors.lastname: Bradley
authors.forename: Nick
authors.initials: N
authors.lastname: Corrigan
authors.forename: Michael
authors.initials: M
authors.lastname: Hurley
authors.forename: Andrew E
authors.initials: AE
authors.lastname: Grulich
authors.forename: David
authors.initials: D
authors.lastname: McInnes
mesh_terms: D000704:Analysis of Variance; D001315:Australia; D017280:Condoms; D015658:HIV Infections / Q000517:prevention & control / Q000635:transmission*; D018451:Homosexuality, Male / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D020407:Internet; D008297:Male; D012044:Regression Analysis; D012307:Risk Factors; D012309:Risk-Taking; D012725:Sexual Behavior / Q000523:psychology / Q000706:statistics & numerical data*; D012747:Sexual Partners; D011795:Surveys and Questionnaires; D047568:Unsafe Sex