Table 2. Discrimination, calibration and net benefit metrics.
Cohort (n) | Discrimination AUC PCPTRC (%) (p-value for comparison to the AUC of PSA) | Calibration Risk range where PCPTRC primarily over-predicts Goodness of fit p-value | Net Benefit Range of PCPTRC risks of positive biopsy showing improved net benefit over the rules of biopsying everyone or no one (%) |
---|---|---|---|
ERSPC Goeteborg Round 1 (n=740) | 72.0 (<.0001) | Entire range p < .0001 | None |
ERSPC Goeteborg Rounds 2-6 (n=1241) | 56.2 (<.0001) | Entire range p < .0001 | None |
ERSPC Rotterdam Round 1 (n=2895) | 70.0 (<.0001) | Entire range p <.0001 | None |
ERSPC Rotterdam Rounds 2-3 (n=1494) | 61.0 (.15) | Entire range p <.0001 | None |
ERSPC Tarn (n=298) | 66.7 (.07) | No over-prediction p <.0001 | 27-35 |
SABOR, US (n=392) | 65.4 (.20) | No over-prediction p = 0.24 | 15-45 |
Cleveland Clinic, US (n=3286) | 58.8 (<.0001) | 50% and higher p < .0001 | 35-45 |
ProtecT, UK (n=7324) | 63.9 (.14) | 50% and lower p < .0001 | 30-85 |
Tyrol, Austria (n=5644) | 66.7 (<.0001) | Entire range p < .0001 | 18-41 |
Durham VA, US (n=2419) | 71.5 (<.0001) | No over-prediction p = .0008 | 25-100 |