Evaluation of efficacy and safety of different endoscopic polypectomy techniques for colonic polyps

Table 3 Clinical characteristics of the polyps, n (%)

Parameters	HFE (n = 107)	CSP (n = 106)	EMR (n = 108)	P1 value	P2 value	P3 value
Polyp diameter (mm)	10.61 ± 2.25	7.89 ± 2.12c	14.20 ± 1.65c,e	< 0.001	< 0.001	< 0.001
Location				1.824	0.857	2.214
Proximal colon	65 (60.75)	68 (64.15)	68 (62.96)
Distal colon	42 (39.25)	38 (35.85)	40 (37.04)
Morpholog				1.068	0.919	1.227
Flat	32 (29.91)	38 (35.85)	38 (35.18)
Protruded	75 (70.09)	68 (64.15)	70 (64.82)
Histopathology				2.523	0.850	1.809
TA with LGD	104 (97.2)	101 (95.28)	101 (93.52)
TA with HGD	1 (0.93)	1 (0.94)	3 (2.78)
TVA	1 (0.93)	1 (0.94)	1 (0.92)
SSA/P	1 (0.93)	3 (2.83)	3 (2.78)

¹High-frequency electroresection vs cold snare polypectomy.

²Cold snare polypectomy vs endoscopic mucosal resection.

³High-frequency electroresection vs endoscopic mucosal resection.

^cP < 0.001 vs high-frequency electroresection group.

^eP < 0.001 vs cold snare polypectomy group.

HFE: High-frequency electroresection; CSP: Cold snare polypectomy; EMR: Endoscopic mucosal resection; LGD: Low-grade dysplasia; HGD: High-grade dysplasia; TA: Tubular adenoma; TVA: Tubulovillous adenoma; SSA/P: Sessile serrated adenoma/polyp.