Table 1.

Baseline characteristics of patients and tumors

	EMR-c	ESD	p-value
Patient characteristics
Patient number, n (%)	76	46
Age, years
Mean ± SD	52.39 ± 11.958	51.37 ± 10.186	0.629
Gender, n (%)
Male	47 (61.84)	24 (52.17)
Female	29 (38.16)	22 (47.83)	0.345
With single/multiple lesions, n (%)
Single	72 (94.74)	44 (95.65)
Multiple	4 (5.26)	2 (4.35)	1.000
Lesion characteristics
Lesion number, n (%)	80	48
Lesion size, mm
Mean ± SD	6.988 ± 2.357	6.438 ± 1.988	0.179
Lesion size group, n (%)
< 8 mm	46 (57.50)	29 (60.62)
≥ 8 mm	34 (42.50)	19 (39.58)	0.853
Location group, n (%)
Upper rectum	4 (5.00)	1 (2.08)
Middle rectum	50 (62.5)	24 (50.00)
Lower rectum	26 (32.5)	23 (47.82)	0.223
Histopathological grade, n (%)
G 1	62 (93.94)	42 (89.36)
G 2	4 (6.06)	5 (10.64)	0.486

EMR-c endoscopic mucosal resection with a cap, ESD endoscopic submucosal dissection