Intervention | No. participants (studies) | Quality of evidence | Measure of effect, RR (95% CI) |
---|---|---|---|
Omentoplasty vs. conventional anastomosisa | 611 (3 studies) | + + + + (high quality) − 1: unclear risk of biasb + 1: large magnitude of effect | RR = 0.22 (78% risk reduction) 95% CI = 0.1, 0.5* |
Early NG tube removal (or no NG tube) vs. prolonged NG tube removal | 374 (2 studies) | + + + − (moderate quality) − 2: high risk of biasc + 1: large magnitude of effect | RR = 0.38 (62% risk reduction) 95% CI = 0.02, 0.65* |
Stapled anastomosis vs. hand-sewn anastomosis | 1532 (6 studies) | − − − − (very low quality) − 2: high risk of biasc − 1: imprecision in measure of effectd − 1: inconsistency across studiese | RR = 0.92 (8% risk reduction) 95% CI = 0.45, 1.87 |