Figure 3. Receiver operating characteristic curve analyses of PHI-nomogram and traditional criteria in the validation cohort.
Instructions: %fPSA means biopsy when %fPSA ≤0.16, PSAD means biopsy when PSA density ≥ 0.15. Abbreviations: PSA = prostate specific antigen, fPSA = free PSA, PSAD = PSA density, PHI = prostate health index.