Table 1 Baseline characteristics of study patients at time of ICD implant

Mean age, years (SD)

60.9 (13.5)

Male (%)

78.6

Hypertension (%)

51.4

Diabetes (%)

28.9

Dyslipidemia (%)

48.9

Current smoking (%)

11.8

Prior angina (%)

14.3

Prior myocardial infarction (%)

41.2

Prior stroke (%)

8.0

Prior heart failure (%)

39.6

Prior cardiac arrest (%)

11.6

Prior PCI (%)

21.2

Prior CABG (%)

16.5

Chronic kidney disease (%)

4.9

Primary prevention indication (%)

61.0

Ischemic heart disease (%)

57.4

Dilated cardiomyopathy (%)

25.0

Hypertrophic cardiomyopathy (%)

3.8

Myocarditis (%)

3.3

Sarcoidosis (%)

3.0

Other cardiomyopathy (%)

9.6

Cardiovascular medications (%)

   Aspirin

55.7

   Anticoagulant

27.8

   ADP receptor inhibitor

15.9

   Diuretic

44.0

   Beta-blocker

82.3

   ACEi

64.4

   ARB

11.4

   Statin

64.9

 Antiarrhythmic

16.2

   Amiodarone

12.8

   Other

3.4

CMR parameters, mean (SD)

   LVEDVI, mL/m²

140.0 (45.4)

   LVESVI, mL/m²

99.3 (45.4)

   LVMI, g/m²

70.6 (19.0)

   LVEF, %

32.1 (13.8)

   GLS, %

− 9.0 (4.3)

   GCS, %

− 9.9 (5.0)

   GRS, %

19.9 (12.0)