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Description of the study population by race
| Black | White | |
|---|---|---|
| N | 12,212 | 17,470 |
| Age (mean ± SD) | 64 ± 9 | 65 ± 9 |
| Male (%) | 38 | 50 |
| Income < $35K (%) | 61 | 39 |
| High school or less (%) | 48 | 32 |
| Previous stroke (%) | 8 | 5 |
| Hypertension (%) | 71 | 51 |
| Diabetes (%) | 31 | 16 |
| Current smoking (%) | 17 | 13 |
| Atrial fibrillation (%) | 8 | 10 |
| Left ventricular hypertrophy (%) | 15 | 06 |
| Heart disease (%) | 16 | 20 |
