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Description of set of patients used for the study.
| Total number | 94 |
| Gender (males/females) | 57/37 |
| Age at primary surgery (years) | |
| Median | 61.9 |
| Interquartile range | 12.4 |
| Age at liver surgery (years) | |
| Median | 63.2 |
| Interquartile range | 11.9 |
| Tumor size (T) | |
| T1 | 3 |
| T2 | 3 |
| T3 | 73 |
| T4 | 9 |
| Unknown | 6 |
| Lymph nodes involvement (N) | |
| N0 | 27 |
| N1 | 37 |
| N2 | 16 |
| Unknown | 14 |
| M classification | |
| M0 | 45 |
| M1 | 49 |
| Grade | |
| G1 | 19 |
| G2 | 53 |
| G3 | 13 |
| Unknown | 9 |
