Table 5 Comparison of the IFS with other clinical staging systems in the training cohort
Clinical staging systems | C-index (95%CI) | Change (95%CI) | P value | AIC value |
|---|---|---|---|---|
IFS | 0.684 (0.654–0.714) |  |  | 2646.467 |
AJCC 7th TNM Stage | 0.607 (0.574–0.641) | -0.077 (-0.111 — -0.035) | < 0.0001 | 2701.532 |
AJCC 8th TNM Stage | 0.614 (0.581–0.648) | -0.070 (-0.106 — -0.027) | 0.0005 | 2697.023 |
Child-Pugh Stage | 0.505 (0.494–0.516) | -0.179 (-0.212 — -0.144) | < 0.0001 | 2740.608 |