Table 5. Subcategory of postoperative complications comparing LTG with OTG.

		Test for Overall Effect		Test for Heterogeneity
Items	RR 95% CI	Z	P	I 2	P
Anastomotic leakage	1.18 (0.61, 2.26)	0.48	0.629	<0.1%	0.656
Anastomotic stenosis	1.29 (0.72, 2.30)	0.85	0.394	<0.1%	0.839
Wound infection	0.35 (0.20, 0.61)	3.70	<0.001	<0.1%	0.822
Postoperative ileus	0.71 (0.28, 1.78)	0.73	0.463	<0.1%	0.949
Postoperative pneumonia	0.59 (0.29, 1.18)	1.50	0.133	<0.1%	0.955
Pancreatitis	0.56 (0.18, 1.70)	1.02	0.310	<0.1%	0.968
Intra-abdominal abscess	0.55 (0.29, 1.03)	1.87	0.062	7.4%	0.369
Adhesive bowel obstructions	0.73 (0.36, 1.48)	0.86	0.388	<0.1%	0.681

CI, confidence interval; LTG, laparoscopic total gastrectomy; OTG, open total gastrectomy; RR, relative risks; WMD, weighed mean difference; data in bold, significant P-value.