Table 4 Concordance indices of the current three-strata risk group model (NICE) and Cambridge Prognostic Group (CPG) from competing risk analysis in predicting prostate cancer-specific mortality (p < 0.001 for both comparisons)
| Â | Concordance index (confidence interval) | |
|---|---|---|
Cohort (n) | NICE | CPG |
PCBaSe (72,337) | 0.77 (0.76–0.77) | 0.81 (0.81–0.82) |
Singapore (2550) | 0.76 (0.73–0.80) | 0.79 (0.76–0.83) |