Discordance Between HIV Risk Perception, Sexual Behavior, and Pre-exposure Prophylaxis Adherence Among Young Sexual and Gender Minorities in the United States

Abstract

PurposeIn the United States, youth experience suboptimal HIV pre-exposure prophylaxis (PrEP) adherence. One common idea posits that this is due to their developing decision-making skills. However, quantitative evidence of this assumption is limited. We therefore examined whether individual decision-making factors, such as HIV risk perception and sexual behavior, predicted PrEP adherence in a national trial of young sexual and gender minorities (YSGMs). MethodsIn 2019–2021, the Adolescent Medicine Trials Network for HIV Interventions 142 study enrolled 225 PrEP users (ages 16–24) throughout the country. Regression models estimated the associations between HIV risk perception (using a modified Perceived HIV Risk Scale), sexual behavior (condomless anal sex in ≤ 3 months), and self-reported oral PrEP adherence (≥4 pills in the past week) at the same time point (baseline) and longitudinally (3 months). ResultsBaseline risk perception (risk ratio [RR]: 0.92, 95% confidence interval [CI]: 0.82, 1.04) and condomless anal sex (RR: 1.10, 95% CI: 0.97, 1.25) were not associated with PrEP adherence at the same time point and did not predict 3-month adherence (RR: 0.97, 95% CI: 0.85, 1.11; RR: 1.05, 95% CI: 0.93, 1.19, respectively). Baseline risk perception was not associated with condomless anal sex at either time point (baseline RR: 1.16, 95% CI: 0.94, 1.43; 3-month RR: 1.07, 95% CI: 0.90, 1.28). DiscussionIn this national trial of YSGM, HIV risk perception and condomless anal sex did not predict PrEP adherence. Targeting individual-level perceptions and behaviors will likely insufficiently address youth's suboptimal PrEP use. Future research should identify YSGM-specific adherence drivers and train providers to recognize such motivations.