Table 1.

Baseline characteristics of study patients

	No bleeding	Bleeding
	after EMR	after EMR	P
	(n = 240)	(n = 57)
Age (yr)	65.3±9.3	66.0±8.4	0.582
Sex (M:F)	170:70	41:16:00	0.998
Tumor factors
Location
Antrum group	135 (85.4%)	23 (14.6%)	0.044
Corpus group	105 (75.5%)	34 (24.5%)
Tumor diameter (mm)	12.4±6.7	13.9±7.1	0.152
Endoscopic pattern of lesion
Elevated type	211 (83.4%)	42 (16.6%)	0.012
Depressed type	29 (65.9%)	15 (34.1%)
Histological type
Borderline adenoma	115 (82.7%)	24 (17.3%)	0.52
Cancer	125 (79.1%)	33 (20.9%)
Cutting method
Strip biopsy	156 (88.1%)	21 (11.9%)	0.001
Endoscopic aspiration mucosectomy	84 (70.0%)	36 (30.0%)

Values are mean±SE or no. of gastric lesions.