Predictors of participant retention in a community-based HIV prevention cohort: perspectives from the HPTN 071 (PopART) study.

Despite challenges, satisfactory retention outcomes were achieved in PopART with limited variability across study arms. In keeping with other studies, younger age, male sex, and lower SES were associated with lower levels of retention. Relocation outside of catchment area was the most common reason for non-retention in this CRT.