Table 6.
Univariate survival analysis.
| Kaplan Meier | ||
|---|---|---|
| OS | RFS | |
| Age | 0.329 | 0.334 |
| Gender | 0.336 | 0.097 |
| ASA classification | 0.723 | 0.317 |
| Preoperative biopsy | 0.388 | 0.515 |
| Preoperative therapy | 0.886 | 0.053 |
| Major resection | 0.072 | 0.065 |
| Extended resection | 0.040 | 0.039 |
| Vascular extension | 0.290 | 0.326 |
| Visceral extension | 0.024 | 0.020 |
| Vascular infiltration | 0.018 | 0.538 |
| Visceral infiltration | 0.004 | 0.079 |
| Morbidity | 0.920 | 0.846 |
| Severe morbidity (≥Clavien-Dindo 3a) [11] | 0.822 | 0.764 |
| Tumor size (<5 vs. 5–10 vs. >10 cm) * | <0.001 | <0.001 |
| Solitary vs. multifocal tumors | 0.149 | 0.001 |
| T stage | <0.001 | <0.001 |
| N stage | <0.001 | 0.001 |
| M stage | 0.001 | <0.001 |
| L stage | 0.534 | 0.702 |
| V stage | 0.053 | 0.301 |
| Pn stage | 0.003 | 0.053 |
| R stage | 0.197 | 0.207 |
| Grading | 0.344 | 0.598 |
| UICC stage | <0.001 | <0.001 |
For survival analyses perioperative deaths (n = 18) were excluded; for multivariate analysis, p-values < 0.1 were further analyzed in Table 7 (parameters underlined); significant p-values <0.05 are bold; * size of the largest nodule obtained out of the histology report; UICC stage was not included in multivariate analysis; ASA = American Society of Anesthesiologists.