Comparison 2. MBP+oAB vs. oAB.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
2.1 SSI	3	960	Risk Ratio (M‐H, Random, 95% CI)	0.87 [0.34, 2.21]
2.2 Anastomotic leakage	3	960	Risk Ratio (M‐H, Random, 95% CI)	0.84 [0.21, 3.45]
2.3 Mortality	2	709	Risk Ratio (M‐H, Random, 95% CI)	1.02 [0.30, 3.50]
2.4 Incidence of postoperative ileus	2	709	Risk Ratio (M‐H, Random, 95% CI)	1.25 [0.68, 2.33]