Table 1.

The average annual number of ER by type of medical institution.

Average annual number of procedures	Total (n = 855)	Type of institution
		Clinic (n = 319)	Hospital (n = 228)	General hospital (n = 265)	Tertiary hospital (n = 43)
Mean ± SD	35.8 ± 115.7	3.2 ± 7.2	5.2 ± 9.3	40.4 ± 74.1	411.2 ± 281.2
Median (IQR)	2.5 (1.0, 11.3)	1.5 (1.0, 2.7)	2.0 (1.0, 4.0)	11.2 (3.0, 40.2)	348.5 (243.3, 483.5)
Min	1.0	1.0	1.0	1.0	63.0
Max	1641.2	89.3	55.5	637.3	1,641.2

ER endoscopic resection, SD standard deviation, IQR interquartile range.