Clinical Factors of Delayed Perforation after Endoscopic Submucosal Dissection for Gastric Neoplasms

Table 3

Clinical factors related to delayed perforation after gastric endoscopic submucosal dissection (ESD) (%).

Clinicopathological finding	Univariate analysis
	Cases without delayed perforation (99.58)	Cases with delayed perforation (0.42)	value
Sex			0.32
Male	934 (99.7)	3 (0.3)
Female	260 (99.2)	2 (0.8)
Age (yr)			0.28
<70	523 (99.8)	1 (0.2)
≥70	671 (99.4)	4 (0.6)
Stomach status			0.8
Normal/remnant stomach	1179 (99.6)	5 (0.4)
Gastric tube	15 (100)	0 (0.0)
Location			0.0004
Upper	218 (98.2)	4 (1.8)
Middle/lower	976 (99.9)	1 (0.1)
Size (mm)			0.076
≤20	891 (99.8)	2 (0.2)
>20	303 (99.0)	3 (1.0)
Depth of invasion			0.097
M	1026 (99.7)	3 (0.3)
SM	168 (98.8)	2 (1.2)
Ulceration			0.4
Absent	1046 (99.5)	5 (0.5)
Present	148 (0.0)	0 (0.0)
Procedure time (hours)			0.55
<2	863 (99.7)	3 (0.3)
≥2	334 (99.4)	2 (0.6)