Table 4.

Comparison of treatment outcomes for small lesions (defined as ≤ 10 mm in diameter) between grasping forceps assisted endoscopic resection and endoscopic submucosal dissection groups

	GF-ER	ESD	P value
Procedure time, min
Median (IQR)	4.0 (3.0-5.0)	35.0 (25-75)	< 0.01
En bloc resection, n (%)	7 (100)	20 (100)	1.0
R0 resection, n (%)	7 (100)	20 (100)	1.0
Curative resection, n (%)	7 (100)	19 (95.0)	1.0
Perforation, n (%)	0 (0)	1 (5.0)	1.0
Delayed bleeding, n (%)	0 (0)	0 (0)	1.0

P values were calculated using Fisher’s exact test for categorical data and Mann-Whitney U test for continuous data. GF-ER: Grasping forceps assisted endoscopic resection; ESD: Endoscopic submucosal dissection; IQR: Interquartile range.