| pT2 | 34 (23.20 - 44.80) | |||
| pT3 | 17 (13.61 - 20.39) | |||
| pT4 | 18 (9.20 - 26.80) | |||
| Lymph node status | ||||
| pN0 | 23.50 (14.06 - 32.94) | 0.025 | 1.133 (0.392 - 3.278) | 0.818 |
| pN1 | 16 (11.89 - 20.11) | |||
| Resection status | ||||
| R0 | 22 (14.27 - 29.73) | 0.066 | 0.735 (0.443 - 1.220) | 0.233 |
| R1 | 14 (10.12 - 17.88) | |||
| Number of positive lymph nodes | ||||
| 0 | 24 (17.78 - 30.22) | 0.070 | 1.199 (0.674 - 2.132) | 0.537 |
| 1 - 2 (median) | 26 (13.12 - 38.88) | |||
| >2 (median) | 14 (7.97 - 20.03) | |||
| Lymph vascular invasion | ||||
| L0 | 26 (20.26 - 31.74) | 0.635 | ||
| L1 | 17 (12.40 - 21.60) | |||
| Grading | ||||
| G1 | 3 ( - ) | |||
| G2 | 22 (16.42 - 27.59) | 0.062 | 1.348 (0.826 - 2.201) | 0.232 |
| G3 | 14 (8.40 - 19.60) | |||
| Operative time | ||||
| ≤250 min (median) | 17 (12.42 - 21.58) | 0.630 | ||
| >250 min | 18 (8.18 - 27.83) | |||
| Perioperative blood transfusion | ||||
| yes | 14 (3.20 - 24.68) | 0.544 | ||
| no | 17 (10.90 - 23.10) | |||
| Intraoperative blood loss | ||||
| ≤400 ml (median) | 18 (11.00.25.00) | 0.665 | ||
| >400 ml | 17 (12.00 - 22.00) | |||
| Postoperative blood transfusion | ||||
| yes | 12 (6.51 - 17.49) | 0.001 | 1.443 (0.848 - 2.455) | 0.176 |
| no | 20 (13.98 - 26.02) | |||
| Any postoperative complication | ||||
| yes | 14 (9.06 - 18.94) | 0.186 | 1.598 (0.984 - 2.596) | 0.058 |
| no | 18 (12.24 - 23.76) | |||
| Major postoperative complication, Clavien-Dindo ≥ 3 | ||||
| yes | 12 (11.36 - 12.64) | 0.233 |