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Table 2 P-values of the Student t test for the difference between concordance indices and hazard ratios for the 70-gene signature (GENE70), the 76-gene signature (GENE76), and the Gene expression Grade Index (GGI) risk classifications.

From: Comparison of prognostic gene expression signatures for breast cancer

  p-value for difference in concordance indices p-value for difference in hazard ratios
GENE70 vs GENE76 0.15 0.11
GENE70 vs GGI 0.53 0.42
GENE76 vs GGI 0.22 0.19