Clinical efficacy and safety of double-channel anastomosis and tubular gastroesophageal anastomosis in gastrectomy

Table 4 Comparison of long-term postoperative complications in patients with upper gastric adenocarcinoma, n (%)

Group	Cases	Reflux esophagitis					Anastomotic stenosis	Intestinal obstruction	Delayed gastric emptying
		Total	A	B	C	D
Dual channel matching group	50	2 (4.0)	2 (4.0)	0	0	0	6 (12.0)	1 (2.0)	0
Tubular gastroesophageal anastomosis group	49	13 (26.5)	6 (12.2)	5 (10.2)	1 (2.0)	1 (2.0)	12 (24.5)	0	2 (4.1)
Statistical value		χ2 = 13.507		Z = 3.177			χ2 = 2.595	χ2 < 0.001	χ2 = 0.531
P value		0.009		0.001			0.107	> 0.999	0.466