Outcome measures of included randomized trials
| Trials | Treatment | Complication | Operation time, median (range) or mean (SD) min | Hospital stay, d | Reoperation |
|---|---|---|---|---|---|
| Lee et al.14 | LRYGB | 4 | 117 | 2.2 | 0 |
| LSG | 4 | 127 | 2.1 | 0 | |
| Woelnerhanssen et al.15 | LRYGB | NR | NR | NR | 0 |
| LSG | NR | NR | NR | 0 | |
| Helmiö et al.16 | LRYGB | 31 | 94 (52–195) | 4 (3–16) | 4 |
| LSG | 16 | 66 (40–188) | 4 (1–22) | 3 | |
| Kehagias et al.17 | LRYGB | 3 | 186 (34.4) | NR | 2 |
| LSG | 3 | 126.5 (34.1) | NR | 1 | |
| Ramón et al.18 | LRYGB | NR | NR | NR | NR |
| LSG | NR | NR | NR | NR |
LRYGB = laparoscopic Roux-en-Y gastric bypass; LSG = laparoscopic sleeve gastrectomy; NR = not reported; SD = standard deviation.