Sexual risk trajectories among 419 HIV-negative Multicenter AIDS Cohort Study (MACS) participants (2003 – 2011). Sexual risk behavior (SRB) scores ≥4 indicate condom serosorting, condom seropositioning, and practicing no seroadaptive behaviors. The identified groups represent individuals who exhibited low risk (N=264, 63.0%), moderate risk (N=96, 22.9%) and high risk (N=59, 14.1%) trajectories over time.