Table 3.

Distribution of patients according to indication for an ICD implantation as well as LVEF

	ICD as a primary prevention			ICD as a secondary prevention
	LVEF ≤ 35% (n = 176)	LVEF > 35% (n = 28) a	Total group (n = 204)	LVEF ≤ 35% (n = 12)	LVEF > 35% (n = 26)	Total group (n = 38)
Appropriate therapy	36 (20.4%)	6 (21.4%)	42 (20.5%)	2 (16.7%)	7 (26.9%)	9 (23.6%)
No therapy	140 (79.6%)	22 (78.6%)	162 (79.5%)	10 (84%)	19 (73.1%)	29 (26.4%)

^a All patients who had an ICD as a primary prevention and >35% in CMR had LVEF≤35% in echocardiography. The indication for an ICD implantation as a primary prevention was based on echocardiographic LVEF measurement in those patients.