Study sample characteristics and mean values for measured vein/sinus diameters and WMH volume
| Characteristics | |
| No., overall | 682 |
| Age at scan (mean) (SD) (yr) | 73.9 (5.93) |
| Women (No.) (% total) | 403 (59.1) |
| Race/ethnicity (No.) (% within race/ethnicity) | |
| White | 185 (27.1) |
| Black | 243 (35.6) |
| Hispanic | 236 (34.6) |
| Other | 18 (2.6) |
| Vascular risk factors (No.) (% total) | |
| Heart disease | 130 (19.1) |
| Hypertension | 434 (63.6) |
| Diabetes | 166 (24.3) |
| Diameter, based on SWI (mean) (SD (mm) | |
| Internal cerebral veins | 1.73 (0.26) |
| Basal veins of Rosenthal | 1.64 (0.26) |
| Superior sagittal sinus | 6.18 (0.87) |
| Vein of Galen | 2.72 (0.57) |
| Straight sinus | 3.80 (0.90) |
| WMH volume (mean) (SD) (mm3) | |
| Total | 5.21 (6.64) |
| Frontal lobe | 2.27 (3.46) |
| Temporal lobe | 0.32 (0.57) |
| Parietal lobe | 1.44 (2.46) |
| Occipital lobe | 0.42 (0.56) |