Table 3.
Histopathological classification.
| All Patients n = 213 |
Open Surgery n = 110 (51.6%) |
Robotic Surgery n = 103 (48.4%) |
p-Value | |
|---|---|---|---|---|
| Masaoka–Koga stage | ||||
| I | 58 (27.2%) | 12 (10.9%) | 46 (44.7%) | 0.604 |
| II | 131 (61.5%) | 82 (74.6%) | 49 (47.5%) | |
| III | 20 (9.4%) | 13 (11.8%) | 7 (6.8%) | |
| IV | 4 (1.9%) | 3 (2.7%) | 1 (1%) | |
| WHO | ||||
| A | 31 (14.6%) | 20 (18.2%) | 11 (10.7%) | 0.075 |
| AB | 36 (16.9%) | 21 (19.1%) | 15 (14.6%) | |
| B1 | 34 (15.9%) | 12 (10.2%) | 22 (21.4%) | |
| B2 | 85 (39.9%) | 47 (42.8%) | 38 (36.9%) | |
| B3 | 12 (5.6%) | 8 (7.3%) | 4 (3.8%) | |
| C | 2 (1%) | 0 | 2 (1.8%) | |
| Others | 13 (6.1%) | 2 (1.8%) | 11 (10.7%) | |
| Tumor size (cm) | 5.2 (2.6) | 5.6 (2.6) | 3.5 (2.1) | <0.001 |
| R0 | 208 (97.6%) | 107 (97.3%) | 101 (98%) | 0.705 |
| R1 | 5 (2.4%) | 3 (2.7%) | 2 (2%) | |
| Postoperative Radiotherapy | 72 (33.8%) | 51 (46.4%) | 21 (20.4%) | <0.001 |
| 3-year OS | 94% | 93% | 95% | |
| 5-year OS | 86% | 86% | 87% |
Statistics: mean (SD) or frequency (%).