Table 3.

Characteristics of the activity and organization of ERs.

Characteristic	Research sample
Admissions/year	<10,000	5	3.1%
	≥10,000–25,000	41	25.3%
	≥25,000–40,000	38	23.5%
	≥40,000–65,000	40	24.7%
	≥65,000–130,000	36	22.2%
	≥130,000	2	1.2%
	Total	162	100%
Presence of an STO unit	Yes	126	74.1%
	No	44	25.9%
	Total	170	100%
24 h Radiological Service	Yes	55	32.4%
	No	115	67.6%
	Total	170	100%
Presence of CT	Yes	165	97.1%
	No	5	2.9%
	Total	170	100%