KLK3 and benign prostatic hyperplasia: AMACR was superior to PSA, PSAD, and f/t PSA in detecting PCa from BPH (Figure 1C, AMACR vs. PSA, p = 0.0054; AMACR vs. f/t PSA, p = 0.056, AMACR vs. PSAD, p = 0.008).