Table 1.
Overall participant characteristics.
| N Data Points | 1384 |
| N Subjects | 665 |
| N Subjects with Longitudinal DTI | 406 |
| Baseline Age, mean (SD) | 71.3 (10.0) |
| range | 50–95 |
| Females, No. (%) | 377 (56.7) |
| White, No. (%) | 440 (66.2) |
| Education years, mean (SD) | 17.0 (2.5) |
| range | 7–24 |
| APOE ε4 Carriers, No. (%) | 157 (23.6) |
| Hypertension, No. (%) | 306 (46.0) |
| Obese, No. (%) | 150 (22.6) |
| Elevated Cholesterol, No. (%) | 224 (33.7) |
| Diabetes, No. (%) | 61 (9.2) |
| Smoking (current/ever vs. never), No. (%) | 281 (42.3) |
| Vascular Burden, No. (%) | 0 = 98 (14.7) |
| 1 = 236 (35.5) | |
| 2 = 204 (30.7) | |
| 3+ = 113 (17.0) | |
| Follow-up Interval in years, mean (SD) | 3.6 (1.7) |
| range | 0–8.3 |
| Number of Visits, mean (SD) | 2.8 (1.0) |
| range | 1–8 |