Multicenter evaluation of recurrence in endoscopic submucosal dissection and endoscopic mucosal resection in the colon: A Western perspective

Table 3 Comparison of recurrence with no recurrence

	Recurrence, n (%)	No recurrence, n (%)	P value
Size of polyp, mm (mean ± SD)	37.4 (17.1)	32.7 (13.8)	0.202
Procedure			0.002
ESD	1/24 (4.2)	76/263 (28.9)
Knife-assisted endoscopic removal	0/24 (0.0)	32/263 (12.2)
EMR	23/24 (95.8)	155/263 (58.9)
En bloc resection			0.003
En bloc	2/24 (8.3)	102/263 (38.8)
Non en bloc	22/24 (91.7)	161/263 (61.2)
Circumferential incision			0.001
Yes	1/99 (1.0)	98/99 (99.0)
No	23/188 (12.2)	165/188 (87.8)
Prior resection			0.154
Prior attempt	3/24 (12.5) (17.6)	14/263 (5.3)
No prior attempt	21/24 (87.5)	249/263 (94.7)
Pathology			0.691
Non-neoplastic	0/24 (0.0)	11/263 (4.2)
Neoplastic, no high-grade dysplasia	19/24 (79.2)	208/263 (79.1)
High-grade dysplasia	4/24 (16.7)	31/263 (11.8)
Cancer	1/24 (4.2)	13/263 (4.9)
First follow-up, days (mean ± SD)	498.0 (406.9)	482.0 (348.7)	0.854
Complete resection			0.041
R0	1/24 (4.2)	70/263 (26.6)
R1	22/24 (91.7)	178/263 (67.7)
Rx	1/24 (4.2)	15/263 (5.7)

EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection.