Table 5.

Outcomes according to the total number of procedures per endoscopist

Number of ESD procedures per endoscopist	≤10	>10	p value	Total
Endoscopists, n	6	13		19
ESD total number of cases	32	478		510
ESD total number of cases per endoscopist, median (IQR)	4.5 (3.25–8.50)	30.0 (17.0–41.0)	0.001	19 (8–32)
ESD number of cases per endoscopist/last year, median (IQR)	4.0 (3.75–4.25)	15.0 (10.0–27.0)	0.001	10 (4–24)
En bloc resection, %	84	93	0.0799	92
R0 resection, %	81	89	0.2089	88
Curative resection, %	75	87	0.0684	86
Surgery due to noncurative resection, %	15.6	5	0.0154	6
Intra-procedural perforation, %	6.3	5	0.7876	5
Intra-procedural bleeding, %	0	<1	0.8003	<1
Delayed bleeding, %	0	3	0.297	3
Surgery due to an adverse event, %	0	2	0.4858	1