Table 1

Incremental values of the molecular predictors when added to the clinical factors

Risk factorRCHOP
CHOP
C-statisticDifference in C (95% CI)IDIC-statisticDifference in C (95% CI)IDI
Clinical factors 0.739   0.721   
Clinical factors + 6-gene predictor 0.752 (0.600)* 0.013 (−0.021, 0.047) 0.001 (−0.008, 0.049) 0.724 (0.678)* 0.002 (−0.021, 0.026) 0.022 (−0.006, 0.080) 
Clinical factors + 3-component signature 0.771 (0.717)* 0.031 (−0.026, 0.089) 0.076 (0.013, 0.167)    
Clinical factors + 2-gene model    0.739 (0.619)* 0.018 (−0.016, 0.052) 0.037 (−0.002, 0.098) 
Risk factorRCHOP
CHOP
C-statisticDifference in C (95% CI)IDIC-statisticDifference in C (95% CI)IDI
Clinical factors 0.739   0.721   
Clinical factors + 6-gene predictor 0.752 (0.600)* 0.013 (−0.021, 0.047) 0.001 (−0.008, 0.049) 0.724 (0.678)* 0.002 (−0.021, 0.026) 0.022 (−0.006, 0.080) 
Clinical factors + 3-component signature 0.771 (0.717)* 0.031 (−0.026, 0.089) 0.076 (0.013, 0.167)    
Clinical factors + 2-gene model    0.739 (0.619)* 0.018 (−0.016, 0.052) 0.037 (−0.002, 0.098) 
*

C-statistic when molecular predictor was used alone.

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