Table 2 NACC cerebrovascular outcomes by cohort showing the frequency and percentages for each level of severity
From: Cerebrovascular pathology in Down syndrome and Alzheimer disease
| Â | Cohort | ||
|---|---|---|---|
Characteristic | AD (n = 80) | DS (n = 32) | Ctrl (n = 37) |
Atherosclerosis | |||
 Not assessed | 2 (2.5%) | 0 (0%) | 0 (0%) |
 None | 34 (42%) | 24 (75%) | 9 (24%) |
 Mild | 28 (35%) | 5 (16%) | 16 (43%) |
 Moderate | 11 (14%) | 2 (6.2%) | 9 (24%) |
 Severe | 4 (5%) | 0 (0%) | 3 (8.1%) |
 Missing | 1 (1.2%) | 1 (3.1%) | 0 (0%) |
Arteriolosclerosis | |||
 Not assessed | 0 (0%) | 0 (0%) | 0 (0%) |
 None | 43 (54%) | 31 (97%) | 21 (57%) |
 Mild | 21 (26%) | 0 (0%) | 9 (24%) |
 Moderate | 12 (15%) | 0 (0%) | 6 (6%) |
 Severe | 3 (3.8%) | 0 (0%) | 1 (2.7%) |
 Missing | 1 (1.2%) | 1 (3.1%) | 0 (0%) |
CAA | |||
 Not assessed | 0 (0%) | 0 (0%) | 0 (0%) |
 None | 22 (28%) | 4 (12%) | 30 (81%) |
 Mild | 32 (40%) | 8 (25%) | 4 (11%) |
 Moderate | 11 (14%) | 7 (22%) | 3 (8.1%) |
 Severe | 14 (18%) | 12 (38%) | 0 (0%) |
 Missing | 1 (1.2%) | 1 (3.1%) | 0 (0%) |