Table 2 The performances of the different models in the primary and validation cohorts.
From: Predicting distant metastasis and chemotherapy benefit in locally advanced rectal cancer
Cohort | C-index (95% CI) | |||
|---|---|---|---|---|
Radiomic signature | Clinical nomogram | Radiomic nomogram | Valentini’s nomogram | |
Primary Cohort | 0.847 (0.803–0.891) | 0.682 (0.618–0.745) | 0.855 (0.812–0.899) | 0.686 (0.620–0.751) |
Validation Cohort 1 | 0.809 (0.718–0.901) | 0.595 (0.483–0.706) | 0.848 (0.773–0.923) | 0.707 (0.628–0.786) |
Validation Cohort 2 | 0.848 (0.761–0.934) | 0.508 (0.405–0.612) | 0.831 (0.742–0.920) | 0.495 (0.391–0.598) |
Validation Cohort 3 | 0.803 (0.705–0.901) | 0.631 (0.532−0.730) | 0.825 (0.728−0.921) | 0.644 (0.537−0.751) |
