BACKGROUND
HIV disproportionately affects sexual minority men (SMM) in the U.S.
OBJECTIVE
We sought to determine past HIV post-exposure prophylaxis (PEP) use and current pre-exposure prophylaxis (PrEP) use among an online sample of cisgender and transgender men who have sex with men.
METHODS
In 2019, HIV-negative and unknown status SMM (n=63,015) were recruited via geosocial networking apps, social media, and other online venues to participate in a brief eligibility screening survey. Individuals were asked about past PEP and current PrEP use. We examined associations of demographics, socioeconomic indicators, recent club drug use, and current PrEP use on past PEP use using fully-adjusted logistic regression.
RESULTS
Prior PEP use was relatively uncommon (11.3%), with 2.66 times more men reporting current PrEP use (30.1%). Most (85.9%) past PEP users were current PrEP users, representing 32.2% of all current PrEP users. In multivariable analysis, current PrEP users had 20.1 times higher odds (95%CI: 18.6-21.6) of past PEP use compared to non-PrEP users. Other factors significantly (p<0.001) associated with past PEP use but with smaller effect sizes included: older age (>24 years old) compared to younger age (AOR=1.15); bisexual identity compared to gay (AOR=0.86); Latino, Black, and other/multiracial race/ethnicity compared to white, individually (AORs=1.37-1.52); having health insurance (AOR=0.80); and recent club drug use (AOR=1.19).
CONCLUSIONS
Prior PEP use was relatively uncommon in our online sample of SMM, but our findings indicate PEP could potentially be a gateway to PrEP. Advertising and prescribing PEP could support efforts to increase PrEP.
The utility of index case recruitment for establishing couples’ eligibility: An examination of consistency in reporting the drug use of a primary partner among sexual minority male couples.