Table 2.
Results of meta-analysis in laparoscopic hepatectomy vs open hepatectomy
| Outcomes of interest | Study, n | LH, n | OH, n | WMD/OR (95%CI) | P |
Study heterogeneity |
P | ||
| χ2 | df | I2, % | |||||||
| Operative time, min | 15 | 589 | 665 | 21.49 (-0.27, 43.24) | 0.05 | 227.54 | 14 | 94 | < 0.001 |
| Estimated blood loss, mL | 13 | 575 | 646 | -61.56 (-108.2, -14.91) | 0.01 | 124.6 | 12 | 90 | < 0.001 |
| Intraoperative transfusion | 9 | 450 | 525 | 0.41 (0.22, 0.79) | 0.008 | 13.36 | 8 | 40 | 0.10 |
| Length of hospital stay, d | 15 | 609 | 685 | -3.32 (-4.32, -2.32) | < 0.001 | 75.37 | 14 | 81 | < 0.001 |
| Postoperative complications | 16 | 624 | 705 | 0.52 (0.39, 0.70) | < 0.001 | 10.10 | 15 | 0 | 0.81 |
| Time to oral intake, d | 7 | 210 | 289 | -0.98 (-1.48, -0.47) | < 0.001 | 188.28 | 6 | 97 | < 0.001 |
| Initial residual stone | 12 | 517 | 604 | 0.79 (0.50, 1.25) | 0.31 | 3.96 | 11 | 0 | 0.97 |
| Final residual stone | 5 | 136 | 146 | 0.34 (0.11, 1.08) | 0,07 | 2.92 | 4 | 0 | 0.57 |
| Stone recurrence | 12 | 530 | 604 | 0.63 (0.34, 1.16) | 0.14 | 4.08 | 11 | 0 | 0.97 |
df: Degrees of freedom; LH: Laparoscopic hepatectomy; OH: Open hepatectomy; WMD/OR: Weight mean difference/odds ratio.