Table 1.
Demographic Characteristics and Cardiovascular Data for African Americans and Caucasians. (AA= African American, CC=Caucasian)
| Variable | AA (N=21) | CC (N=45) |
|---|---|---|
| Age (years) | 57.8 ± 7.7 | 59.0 ± 5.8 |
| Gender (% Female) | 85.7% * | 57.8% * |
| College graduate or higher level | 85.7% | 84.5% |
| Income** | ||
| Income $39,000 or less | 38.1% | 11.1% |
| Income $40,000-$79,000 | 38.1% | 24.4% |
| Income $80,000 or more | 23.8% | 64.4% |
| Mean days/week performing cardiovascular exercise | 1.5 | 1.7 |
| Ever Smoker | 19.0% | 26.7% |
| Current Smoker | 4.8% | 8.9% |
| Depression | 28.6% | 17.7% |
| Systolic (mmHg) | 129.8 ± 12.3 | 125.5 ± 12.8 |
| Diastolic (mmHg) | 77.0 ± 5.4 | 77.6 ± 9.7 |
| % Nocturnal Dipping | 6.5 ± 6.9 | 7.3 ± 6.3 |
| FMD 60 s. | 6.1 ± 6.1 | 5.9 ± 4.2 |
| FMD 90 s. | 4.3 ± 6.9 | 4.5 ± 3.8 |
| EndoPat RHI | 2.4 ± 0.8 | 2.3 ± 0.8 |
| EndoPat AIx | 28.8 ± 19.2 | 22.1 ± 17.4 |
*P < 0.05; ** P < 0.01; RHI=reactive hyperemia index; AIx= augmentation index; FMD= flow mediated vasodilation