The median age at prostate cancer diagnosis was 66 yr (IQR 61–72 yr) and the median age at metastatic prostate cancer diagnosis was 70 yr (IQR: 64–76 yr), with a prostate-specific antigen (PSA) value of 43 ng/ml (IQR: 11–223 ng/ml; Table 1). This evidence concerns the gene KLK3 and metastatic prostate carcinoma.