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. 2023 Feb 24;23:188. doi: 10.1186/s12885-023-10668-x

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

Abbreviation: AJCC: American Joint Committee on Cancer; AIC: Akaike information criterion