Comparison 3. No replacement versus replacement.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pancreatic fistulas	1	46	Risk Ratio (IV, Random, 95% CI)	1.60 [0.84, 3.07]
2 In‐hospital mortality	1	46	Risk Ratio (IV, Random, 95% CI)	0.0 [0.0, 0.0]
3 Total hospital stay	1	46	Mean Difference (IV, Random, 95% CI)	16.30 [13.24, 19.36]
4 Overall complications	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
4.1 Delayed gastric emptying	1		Risk Ratio (IV, Random, 95% CI)	0.0 [0.0, 0.0]