KLK3 and neoplasm: In univariable model for baseline characteristics, BCR-free survival was significantly associated with age, prostate-specific antigen (PSA) level, Gleason score (GS), tumor percentage, NHT status, pathologic T (pT) stage, pathologic N (pN) stage, positive resection margin, perineural invasion status, seminal vesicle invasion status, and lymphovascular invasion status (p<0.05, Supplementary Table 3).