KLK3 and posterior cortical atrophy: The 10-year cumulative incidence proportion of PSA persistence was 7.2% (95% CI = 7.0% to 7.4%) and 26% (95% CI = 25% to 27%) for PSA relapse, and the cumulative incidence of persistence and relapse combined ranged from 21% to 52% depending on PCa risk category at diagnosis.