Table 2.
Peri- and post-surgical measures
| Open surgery | Hybrid surgery | P | |
|---|---|---|---|
| Disease characteristics established post-surgery | |||
| Median lymph nodes with tumour* (Q1, Q3)†, n | 0 (0–3) | 0 (0–3) | |
| pStage, n (%) | |||
| 0 | 23 (10) | 29 (12) | |
| I or II | 106 (44) | 109 (44) | |
| III | 80 (33) | 82 (33) | |
| IV | 33 (14) | 28 (11) | |
| Measures of surgical performance | |||
| Median total lymph nodes retrieved* (Q1, Q3)†, n | 26 (19–33) | 24 (19–32) | 0.449 |
| Resection margin, n (%) | |||
| R0 | 169 (69) | 191 (76) | |
| R1 | 72 (30) | 60 (24) | |
| R2 | 3 (1) | 0 | 0.069 |
| Post-surgical outcomes | n = 261 | n = 259 | |
| Median total hospital stay in days‡ (Q1, Q3)† | 10 (8, 15) | 11 (9, 16) | 0.085 |
| Median post-surgical hospital stay in days‡ (Q1, Q3)† | 10 (8, 15) | 11 (9, 15) | 0.080 |
| Mortality within 30-days post-surgery, n (%) | 6 (2.3) | 4 (1.5) | 0.531 |
| Mortality within 90-days post-surgery, n (%) | 14 (5.4) | 8 (3.1) | 0.197 |
| Death during initial hospital stay‡, n (%)* | 4 (1.5) | 4 (1.6) | 0.987 |
*The two measures available for 244 and 252 participants allocated to open surgery and hybrid surgery, respectively. †Q1 and Q3 are the lower and upper limits of the interquartile range. ‡Not available for one participant allocated to hybrid surgery as not admitted to hospital.