KLK3 and cancer: The cancer detection rate stratified by PSA value from, 0–4, 4–10, 10–20, 20–30, 30–40, 40–50, 50–10, and more than 100 ng/mL was 20.7, 37.6, 58.4, 80.6, 87.5, 100, 93.3, and 100 %, respectively.