Participants’ sociodemographic characteristics, overall and by site.
USA: United States of AmericaParticipants reported having had an average of 3 male partners (SD = 6.35; range: 0–70) in the prior 30 days. Participants’ average total number of RAI occasions during that 30-day period was 4.76 (SD = 8.50; range: 0–100), with an average of 2.57 (SD = 7.74; range: 0–100) condomless RAI occasions self-reported during the same period. Two thirds of participants (n = 142; 65.4%) reported prior use of an enema, with fewer participants self-reporting that they had used a suppository (n = 8; 3.7%) or insert (n = 10; 4.6%) prior to RAI.