Table 1.
Demographics and clinical characteristics of sudden cardiac death cases and controls
| Demographics | Cases (n = 522) | Controls (n = 736) | P-value |
|---|---|---|---|
| Age, years | 65.3 ± 14.5 | 65.8 ± 11.5 | 0.57 |
| Male | 346 (66%) | 503 (68%) | 0.44 |
| Racea | <0.001 | ||
| White | 426 (82%) | 665 (92%) | |
| Black | 55 (11%) | 25 (3.5%) | |
| Hispanic | 10 (1.9%) | 10 (1.4%) | |
| Other | 27 (5.2%) | 24 (3.3%) | |
| Smokerb | <0.001 | ||
| Current | 165 (40%) | 124 (22%) | |
| Former | 132 (32%) | 237 (42%) | |
| Never | 113 (28%) | 209 (37%) | |
| Diabetes | 205 (39%) | 188 (26%) | <0.001 |
| Hypertension | 387 (74%) | 493 (67%) | 0.008 |
| History of coronary artery disease | 239 (46%) | 401 (54%) | 0.002 |
| Body mass index (kg/m2)c | 30.6 ± 9.8 | 29.8 ± 6.4 | 0.12 |
| LVEF ≤35%d | 51 (21%) | 34 (11%) | <0.001 |
Data are presented as mean ± SD or n(%).
SD, standard deviation; LVEF, left ventricular ejection fraction.
a
Race information missing for 4 cases and 12 controls.
b
Smoking history missing for 112 cases and 166 controls
c
Body mass index missing for 116 cases and 26 controls.
d
Left ventricular ejection fraction, missing for 279 cases and 418 controls.