KLK3 and posterior cortical atrophy: Based on these results, we developed a PCa metastasis risk-scoring (PCa-MRS) model with the highest AUC among them, consisting of three miRNAs (miR-636, miR-21, and miR-451) and preoperative PSA as follows: Logit (P) = −8.72 + (0.97 × ΔCt of miR-636) + (−0.49 × ΔCt of miR-21) + (−0.38 × ΔCt of miR-451) + (0.030 × preoperative PSA).