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Comparison of the performance of the 8th edition of the TNM Staging System alone and the 8th edition of the TNM Staging System combined with LVI
| Classification | Linear trend x2 | Likelihood ratio x2 | AIC |
|---|---|---|---|
| 8th TNM | 58.58 | 58.36 | 1485.04 |
| 8th TNM + LVI | 68.99 | 70.18 | 1473.38 |
