Cerebrovascular lesions by group within the study sample
| Age≤73 years | Age > 73 years | Pa | |||
|---|---|---|---|---|---|
| CN (n = 13) | MCI (n = 13) | CN (n = 12) | MCI (n = 12) | ||
| WMH volume, (cm3)a | |||||
| Median (IQR) | 6 (4–8) | 10 (6–25) | 14 (8–18) | 15 (12–25) | .01 |
| Range | 1–14 | 4–45 | 6 to 25 | 4–65 | |
| Subcortical infarctions, no. (%) | |||||
| Present | 1 (8) | 1 (8) | 2 (17) | 2 (17) | .74 |
| Absent | 12 (92) | 12 (92) | 10 (83) | 10 (83) | |
| Cortical infarctions (<1-cm diameter) | |||||
| Present | 0 | 1 (8) | 0 | 2 (17) | 0.31 |
| Absent | 13 (100) | 12 (92) | 12 (100) | 10 (83) | |
a Differences across all 4 groups were tested with the Kruskal-Wallis test. Differences in rates of infarctions across all 4 groups were tested with the Fisher exact test.