Computer Assisted Self-Interview (CASI)
sexual behaviors
Participants completed a baseline assessment via CASI, which included their sociodemographic characteristics (including their age, level of education, gender identity, sexual identity, and relationship status), sexual behaviors in the past 30 days (e.g., number of sexual partners, number of RAI occasions, and number of condomless RAI occasions). Participants were also asked to report whether they had ever used a douche, insert, or suppository prior to RAI.The Decisional Balance to Use Condoms Scale [We assessed whether participants had ever heard of PrEP and whether they were currently on PrEP, respectively. Participants also noted their future willingness to use each RM modality every time before RAI if it was found to be effective against HIV. Participants answered RM willingness questions for a douche, insert, and suppository modality, respectively, using a 10-point scale (1 = Very Unlikely; 10 = Very Likely).