Table I.
Demographic, Clinical, and Behavioral Variables
| Variable | Total n = 236 (unless noted otherwise) |
|---|---|
| Demographic variables | |
| Age (years) (mean ± SD) | 58.4 (±11.2) |
| Gender (n%) | |
| Male | 177 (75.0%) |
| Female | 59 (25.0%) |
| Married (n%) | |
| Single/divorced/widowed | 61 (25.8%) |
| Married/domestic partner | 175 (74.2%) |
| ESSI (mean ± SD)* | 30.1 (±6.1) |
| Education (n%) | |
| ≤High school | 127 (53.8%) |
| High school | 109 (46.2%) |
| Race (n%) | |
| White | 182 (77.1%) |
| African American | 48 (20.3%) |
| Other | 6 (2.5%) |
| Clinical variables (n%) | |
| Type of device (n%)* | |
| ICD only | 186 (79.1%) |
| Biventricular PM with ICD | 49 (20.9%) |
| NYHA class (n%) | |
| I and II | 159 (67.4%) |
| III and IV | 77 (32.6%) |
| LVEF (%) (mean ± SD)* | 26.3 (±11.3) |
| History of CAD n% | 176 (74.6%) |
| History of SCA n% | |
| No | 113 (47.9%) |
| Yes | 123 (52.1%) |
| BMI (mean ± SD) | 28.6 (±6.1) |
| Diabetes | 69 (29.2%) |
| Antihypertensive meds BL* | 143 (60.9%) |
| STAI-S ≥ 40 (clinical significant anxiety)* | 86 (36.6%) |
| BDI-II >13 (at least mild depressive symptoms)* | 55 (23.4%) |
| Charlson Comorbidity score (mean ± SD) | 2.17 (±1.50) |
| Antidepressant/Antianxiety medications at BL (n%) | 37 (15.7%) |
| Sleeping medications at BL (n%) | 16 (6.8%) |
| Behavior variables n% | |
| Tobacco | 36 (15.3%) |
| Alcohol >3 drinks/week | 17 (7.2%) |
| Caffeine* | 158 (67.2%) |
| Caffeine after 3 pm | 74 (31.4%) |
LVEF = left ventricular ejection fraction; CAD = coronary artery disease; SCA = sudden cardiac arrest; STAI = StateTrait Anxiety Inventory; BDI-II = The Beck Depression Inventory II; DASI = Duke Activity Status Inventory; BPI-I = Brief Pain Inventory-Interference; BPI-S = Brief Pain Inventory-Severity; ESSI = ENRICHD Social Support Inventory; SD = standard deviation; PM = pacemaker; ICD = implantable cardioverter defibrillator; NYHA = New York Heart Association; BMI = body mass index.
*
Only 235 provided data for this item.