Table 2.

Univariate and multivariate analyses for factors of post-ESD bleeding

	Univariate analysis			Multivariate analysis
	OR	95% CI	p value	OR	95% CI	p value
Age of ≥70 years	2.36	1.21–4.90	<0.01	2.12	1.10–4.09	0.03
Cerebrovascular disease	2.83	1.17–6.17	0.01	1.67	0.70–4.00	0.25
Thienopyridine derivatives	3.61	1.20–9.12	0.02	2.66	0.94–7.52	0.07
Tumor location: rectum	2.56	1.37–4.74	<0.01	2.14	1.18–3.87	0.01
Tumor size of ≥40 mm	2.48	1.18–4.91	<0.01	2.29	1.16–4.51	0.02
Unclosure of post-ESD defects	5.63	1.46–48.21	<0.01	4.69	1.12–19.60	0.03

CI, confidence interval; ESD, endoscopic submucosal dissection; OR, odds ratio.