KLK3 and cancer: There were no significant differences found in corrected PSA (19.6 ± 8.46 vs. 24.1 ± 21.3, p = 0.303) and corrected PSAD (0.456 ± 0.282 vs. 0.329 ± 0.278, p + 0.102) between the cancer and cancer-free groups.