Postoperative recovery and bleeding risk after endoscopic snare cold resection in patients with 5-15 mm colorectal polyps

Table 1 Comparison of general data, mean ± SD

General information	Experimental group (n = 100)	Control group (n = 93)	t/χ2	P value
Age	58.64 ± 5.33	57.11 ± 5.45	1.971	0.050
Sex
Male	48	49	0.424	0.515
Female	52	44
Smoking history (yes/no)	20/80	22/71	0.378	0.538
Alcohol consumption history (yes/no)	11/89	17/76	2.059	0.151
Diabetes (yes/no)	9/91	4/89	1.694	0.193
Coronary heart disease (yes/no)	5/95	2/91	1.119	0.290
Family history of colorectal cancer (yes/no)	4/96	2/91	0.547	0.459
Location of polyp
Colon transversum	5	24	16.338	< 0.001
Left hemicolon	59	56	0.030	0.864
Right hemicolon	20	20	0.066	0.797
Hepatic flexure of colon	7	1	4.257	0.039

Table 2 Operation time and hospital stay of the two groups (mean ± SD)

Group	Case	Operative time (minute)	Length of stay (day)
Control	93	18.78 ± 5.48	4.89 ± 1.35
Experimental	100	15.02 ± 2.44	3.11 ± 1.08
t		6.230	10.148
P value		< 0.001	< 0.001

Table 3 Rates of complete polyp resection, postoperative perforation, and infection in the two groups

Group	Case	Polyp complete resection rate	Postoperative perforation rate	Postoperative infection rate
Control	93	94.62 (88/93)	0.00 (0/93)	2.15 (2/93)
Experimental	100	98.00 (98/100)	0.00 (0/100)	2.00 (2/100)
χ2		1.572	0.000	0.187
P value		0.210	1.000	0.666