KLK3 and prostate cancer: The patients treated with RARP who experienced short-term major postoperative complications (Clavien Dindo ≥ IIIa) more frequently exhibited high-risk prostate cancer (47 vs. 26%; p = 0.002), more frequently had a Gleason score ≥ 8 (33 vs. 19%; p = 0.02), had a higher mean PSA value (9.7 vs. 7.0 ng/mL; p = 0.002), and more frequently exhibited lymph node invasion (20 vs. 6%; p < 0.001; Table 2).