Table 3.
Subgroup analysis of operation time
| Subgroup | Operation time (min) | P value | |
|---|---|---|---|
| Without 3D group | 3D group | ||
| Previous hepatectomy | |||
| No | 379 (125–868) | 346 (110–860) | 0.05 |
| Yes | 340 (157–760) | 210 (92–789) | 0.03 |
| Procedure | |||
| Hemihepatectomy or more complicated† | 483.5 (255–866) | 440 (238–860) | 0.21 |
| Sectionectomy | 419 (172–742) | 402.5 (175–545) | 0.29 |
| Segmentectomy | 375.5 (264–565) | 332 (175–545) | 0.03 |
| Partial resection | 269 (125–756) | 240 (92–671) | 0.06 |
Values are expressed as the median (range)
† hemihepatectomy or more complicated includes extended left (right) hepatectomy and left (right) hepatectomy