Area under the receiver operating characteristic curve (AUC) for each clinicopathological feature
| Feature | AUC (95% CI) |
|---|---|
| T stage | 0.54 (0.49 to 0.58) |
| N stage | 0.56 (0.52 to 0.6) |
| Tumour grade | 0.58 (0.52 to 0.65) |
| Vascular invasion | 0.54 (0.50 to 0.58) |
| Survival | 0.69 (0.65 to 0.73) |