Table 4 The performances of the models in the training and validation cohort
Cohort | Rad-Score C-Index (95% CI) | Clinical Nomogram C-Index (95% CI) | Combined Nomogram C-Index (95% CI) | % Improvement Over Clinical Nomogram |
|---|---|---|---|---|
Training cohort | 0.837 (0.796, 0.878) | 0.752 (0.692, 0.789) | 0.846 (0.804, 0.879) | 12.8% |
Validation cohort | 0.830 (0.744, 0.912) | 0.709 (0.586, 0.772) | 0.845 (0.767, 0.893) | 19.1% |