Abstract
Substance use is linked to HIV risk at both the individual and the couple-level. We examined whether stimulant use was associated with condomless anal intercourse (CAI) with primary and outside partners among serodiscordant male couples (
N
= 117 couples). Stimulant use by one partner was associated with a decreased odds of CAI with primary partners (AOR = 0.09, 95% CI: 0.01, 0.89). When both partners reported stimulant use, HIV-negative partners had an increased odds of CAI with outside partners (AOR = 6.68, 95% CI: 1.09, 8.01). Understanding couples’ stimulant use in HIV risk is an important area for future research.