Predictors of Event-Driven Regimen Choice in Current PrEP Users and Sexual Behavior Characteristics of MSM Receiving Sexual Health Services in New York City.

While daily PrEP is undeniably effective, broad-based adoption remains low. Non-daily PrEP modalities, like event-driven PrEP (ED PrEP), offer an efficient way to deliver PrEP's protection to priority populations. We carried out an at-home survey with patients receiving sexual health services in a LGBTQ-clinic in New York (n = 147). Participants answered questions on ED PrEP awareness and preferences, sexual behavior, and sexual preparatory practices. Only 50% of our sample were aware of ED PrEP, about 30% met eligibility for ED PrEP, and 35% chose ED PrEP as a good HIV prevention option for them. In a robust Poisson model (n = 128), endorsement of ED PrEP as a good prevention choice was significantly more common in participants who were uninsured, preferred taking PrEP only when needed, and those who had concerns about side-effects. Furthermore, participants reported many sexual behaviors patterns and preparatory practices compatible with use of ED PrEP.