The total sample was 2409. The mean age of participants was 34.2 years [range 18–83 years; standard deviation (SD) 11.1 years]. Most identified as gay (as opposed to bisexual) and reported education after age 16 years (Table 1). Just 9.8% had never had an HIV test, while 57.2% had tested in the previous 12 months; 14.3% reporting having an STI in the previous 12 months. Most reported sexual contact in the previous 12 months and 37.8% reported higher risk UAI in the previous 12 months (i.e. UAI with at least two partners, casual partners and/or unknown/discordant partners).