Fig 2. Test performance of Prostate Health Index at cut-off levels of 25, 35 and 55.

Figures in boxes are the cut-off levels for the Prostate Health Index test from Chiu et al study [2]. Sensitivity/specificity for any grade cancer at different cut-off levels are 88.7%/36.5% at 25, 61.3%/77.5% at 35 and 12.9%/97.4% at 55.