Table 1.
Characteristics of Participants
| n=154 | |
|---|---|
| Demographics | |
| Age, y, mean (SD) | 55.7 (3.9) |
| Female, N (%) | 69 (44.8) |
| Black, N (%) | 70 (45.5) |
| Risk factors | |
| SBP, mm Hg, mean (SD) | 120.5 (15.4) |
| DBP, mm Hg, mean (SD) | 74.1 (11.2) |
| Body mass index, kg/m2, mean (SD) | 30.0 (6.0) |
| Total cholesterol, mg/dL, mean (SD) | 191.8 (39.0) |
| Current smoker, N (%) | 22 (14.3) |
| History of hypertension, N (%) | 51 (33.1) |
| History of diabetes mellitus, N (%) | 24 (15.6) |
| History of cardiac problems, N (%) | 18 (11.7) |
| Renal history, N (%) | 12 (7.8) |
| TCD measures | |
| MCA flow velocity, cm/s, mean (SD) | 51.2 (12.1) |
| Phase, degree, mean (SD) | 42.24 (23.97) |
| Gain, cm/s per mm Hg, mean (SD) | 0.70 (0.3) |
| Coherence, mean (SD) | 0.51 (0.12) |
DBP indicates diastolic blood pressure; TCD, transcranial doppler; MCA, middle cerebra artery; SBP, systolic blood pressure; and transcranial Doppler ultrasound.