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Table 5 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 stratified by each treatment group (p < 0.0001 for all comparisons)

From: The Cambridge Prognostic Groups for improved prediction of disease mortality at diagnosis in primary non-metastatic prostate cancer: a validation study

Cohort (n)

Concordance index (confidence interval)

NICE

CPG

Prostatectomy (20,586)

0.74 (0.72–0.77)

0.77 (0.74–0.79)

Radiotherapy (11,872)

0.69 (0.67–0.70)

0.73 (0.71–0.75)

Conservative management (11,757)

0.73 (0.71–0.74)

0.74 (0.73–0.76)