Feasibility of cold snare polypectomy in Japan: A pilot study

Table 2 Procedure-related outcomes

	Immediate bleeding(n = 8)	Non-immediate bleeding(n = 224)	P-value
Male/female	8/0	146/78	0.10a
Median age	64.5	68	0.27b
(range, years)	(50-76)	(40-86)
Location			0.40a
Proximal to splenic flexure	3 (38%)	132 (59%)
Distal from splenic flexure	5 (62%)	92 (41%)
Morphology			0.59a
Protruded, sessile (0-Is or Isp)	7 (88%)	196 (88%)
Flat, elevated (0-IIa)	1 (12%)	28 (12%)
Median size	7.5 (3-9)	4 (1-9)	0.002b
(range, mm)
≤ 5 mm (%)	2 (22%)	183 (82%)	0.001a
> 6 mm (%)	6 (78%)	41 (18%)
Endoscopist			0.54a
Expert	4 (50%)	74 (33%)
Senior resident	4 (50%)	150 (67%)
Histological type
Not retrieved	0 (0%)	28 (12.5%)
Non-neoplastic polyp	0 (0%)	28 (12.5%)	0.53a
Neoplastic polyp	8 (100%)	168 (75%)

^aYates’χ² test;

^bWilcoxon test.