Table 2.
Demographic and clinical characteristics
| Variables | Sudden cardiac arrest | Other cardiac arrhythmia | p-value |
|---|---|---|---|
| N = 65 | N = 103 | ||
| 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 |