Table 1.
Participant Characteristics for the Study Cohort
| Variables | Study cohort (n=42)* | |
|---|---|---|
| Demographics | Age, y, median (IQR) | 65.5 (56.8–73) |
| Female, n (%) | 20 (47.6) | |
| Black race, n (%) | 30 (71.4) | |
| Vascular risk factors | Ischemic stroke, n (%) | 12 (28.6) |
| Transient ischemic attack, n (%) | 2 (4.8) | |
| Hypertension, n (%) | 19 (45.2) | |
| Diabetes, n (%) | 8 (19) | |
| Hyperlipidemia, n (%) | 8 (19) | |
| Imaging characteristics | WMH volume, cm3, median (IQR) | 8.15 (1.04–26.97) |
| Normalized WMH volume ratio, median (IQR) | 0.0081 (0.0010–0.0263) | |
| Lacunar infarcts, n (%) | 6/42 (14.3) | |
| Lobar microbleeds, n (%) | 1/40 (2.5) | |
| Deep microbleeds, n (%) | 6/40 (15) | |
| Cortical superficial siderosis, n (%) | 0 (0) |
Data for microbleeds and cortical superficial siderosis missing from 2 participants. IQR indicates interquartile range; and WMH, white matter hyperintensities.
*
Eight participants overlapped between the study and watershed cohorts.