Table 8.
Subgroup analyses of studies with laparoscopic technique and different definitions
| Outcome of interest | Studies | Patients (n) | OR/WMD | 95%CI | P value |
| Laparoscopic/laparoscopy-assisted | |||||
| Operative time | 2 | 184 | -31.76 | -68.04, 4.51 | 0.09 |
| Intraoperative blood loss | 2 | 184 | -115.14 | -283.34, 53.06 | 0.18 |
| Hospital stay | 2 | 184 | 0.48 | -0.62, 1.57 | 0.39 |
| Reflux gastritis/esophagitis | 2 | 184 | 0.22 | 0.04, 1.23 | 0.08 |
| Delayed gastric emptying | 2 | 184 | 0.27 | 0.04, 1.62 | 0.15 |
| Roux stasis syndrome | 2 | 184 | 0.39 | 0.12, 1.23 | 0.11 |
| Definition A | |||||
| Reflux gastritis/esophagitis | 2 | 304 | 0.79 | 0.25, 2.49 | 0.68 |
| Definition B | |||||
| Delayed gastric emptying | 1 | 131 | 0.62 | 0.12, 3.21 | 0.57 |
| Definition C | |||||
| Delayed gastric emptying | 1 | 173 | 0.17 | 0.02, 1.97 | 0.16 |
| Definition D | |||||
| Roux stasis syndrome | 3 | 409 | 0.08 | 0.01, 0.85 | 0.04 |
CI: Confidence interval; OR: Odds ratio; WMD: Weighted mean differences.