Table 2.
Comparisons of surgical factors between the MVI (−) group and the MVI (+) group
| Variable | MVI (−) (n = 246) | MVI (+) (n = 168) | P‐value |
|---|---|---|---|
| Intraoperative factors | |||
| Operation time (min) | 227 ± 93 | 219 ± 89 | .3539 |
| Bleeding (g) | 436 ± 449 | 469 ± 626 | .5233 |
| Resected volume (g) | 73 ± 75 | 99 ± 117 | .0071 |
| Transfusion (+) (%) | 24 (9.8%) | 15 (8.9%) | .7665 |
| Anatomical resection (%) | 69 (28%) | 60 (36%) | .0993 |
| Surgical margin (mm) | 4.9 ± 5.7 | 5.7 ± 6.8 | .2036 |
| Postoperative factors | |||
| Mortality (%) | 1 (0.4%) | 2 (1.2%) | .3606 |
| Morbidity (%) | 51 (21%) | 45 (27%) | .1601 |
| Hospital stay (days) | 16 ± 9 | 18 ± 12 | .0414 |
MVI, microvascular invasion.