KLK3 and posterior cortical atrophy: The median age of PCa patients was 71 and 70 years in the PSA 4.0–10.0 ng/ml and 10.1–20.0 ng/ml groups, respectively, which were higher than men with negative biopsies (66 and 66 years, p<0.0001 and p<0.0001) (Table 1).