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Effectiveness of the two staging systems for predicting prognosis.
| Stage | Likelihood ratio (χ 2) | AIC | BIC | P |
|---|---|---|---|---|
| TNM (Training) | 133.583 | 10 354.11 | 10 358.75 | <0.001 |
| TLNRM (Training) | 196.090 | 10 220.55 | 10 225.19 | <0.001 |
| TNM (External) | 318.688 | 4314.199 | 4318.099 | <0.001 |
| TLNRM (External) | 390.910 | 4219.002 | 4222.901 | <0.001 |
AIC, Akaike information; BIC, Bayesian information criterion.
