Table 2 Demographic and clinical characteristics

Sex

Male

48 (74%)

81 (79%)

0.47

Female

17 (26%)

22 (21%)

Age (mean years)

63.5 ± 12.2

64.4 ± 12.4

0.64

BMI (mean kg/m²)

27.6 ± 5.6

28.8 ± 6.7

0.24

Charlson Co-morbidity Index

4.0 ± 2.3

4.6 ± 2.4

0.11

LVEF%

34.8 ± 15.3

33.1 ± 12.6

0.47

Race

Caucasian

59 (91%)

91 (88%)

0.70

American Indian/Alaskan

1 (2%)

2 (2%)

Asian/Pacific Islander

2 (3%)

2 (2%)

Black/African American

3 (5%)

4 (4%)

Mixed race/other

0 (0%)

3 (3%)

Education

Some high school or less

8 (12%)

13 (13%)

0.64

Graduated high school

11 (17%)

27 (26%)

Some college

15 (23%)

25 (24%)

Completed vocational program

2 (3%)

3 (3%)

Completed 2 year college

9 (14%)

9 (9%)

Graduated 4 year college

11 (17%)

10 (10%)

Graduate degree

9 (14%)

16 (16%)

Employment status

Full-time

13 (20%)

24 (23%)

0.88

Part-time

8 (12%)

11 (11%)

Not employed

4 (6%)

4 (4%)

Retired

33 (51%)

55 (53%)

Full-time housewife

1 (2%)

3 (3%)

Disabled

6 (9%)

6 (6%)

ICD reason

VF sudden cardiac arrest

65 (100%)

0 (0%)

 < 0.001

Sustained VT with pre-syncope/syncope

0 (0%)

16 (16%)

Unmonitored syncope with Documented VT

0 (0%)

13 (13%)

VT ≥ 30 s

0 (0%)

9 (9%)

VT or VF inducible on EPS

0 (0%)

65 (63%)

Myocardial Infarction

35 (54%)

61 (59%)

0.30

Diabetes Mellitus

17 (26%)

26 (25%)

0.52

COPD

6 (9%)

15 (15%)

0.22

Heart Failure

28 (43%)

51 (50%)

0.26

CVA

7 (11%)

20 (19%)

0.10

Smoker

13 (20%)

19 (18%)

0.48

Active alcohol use

2 (3%)

1 (1%)

0.33

Active opiate use

1 (2%)

1 (1%)

0.63