Table 1.

ICD Therapy for Primary and Secondary Prevention in Western Countries and Asia

	Sabbag et al.33	van Welsenes et al30	Aonuma et al.37	Kabutoya et al.51	Kotake et al.31	Yokoshiki et al.36	Cho et al.4	Park et al.32
n	2,349	2,134	171	392	985	17,564	305	146
Year	2015	2011	2022	2021	2021	2020	2020	2017
Country	Israel	the Netherlands	Japan	Japan	Japan	Japan	Korea	Korea
Primary/secondary, %	75/25	61/39	100/0	42/58	54/46	26/74	55/45	25/75
ICM/NICM, %	84/16	70/30	42/58	100/0	42/58	36/64	43/57	50/50
Appropriate ICD therapy/ICD shock	3.9/1.1 (1 y)	37 (5 y)/20 (5 y)	10 (24 mo)/NA	20 (20 mo)/9 (20 mo)	22 (36 mo)/NA	NA	18/12 (31 mo)	NA/39 (42 mo)

ICD = implantable cardioverter-defibrillator; ICM = ischemic cardiomyopathy; NA = not available; NICM = nonischemic cardiomyopathy.