KLK3 and cancer: Based on the result of the log-rank test, age (≤75 vs. 76≤), stage (B vs. C), PSA level at diagnosis (<20 ng/mL vs. 20 ng/mL≤), Gleason score (≤7 vs. 8≤), laterality of cancer detected by biopsy (unilateral vs. bilateral) and SVI (negative vs. positive) were adopted as clinicopathological parameters of PSA progression and T classification was excluded as a parameter in grouping the patients, because it was difficult to distinguish the cutoff point.