Table 2.
Description of the study population
| Disease | Number of patients, n | Known heredity, n (%) | Females, n (%) | Age at onset, mean (range) |
|---|---|---|---|---|
| Alzheimer’s disease | 77 | 70 (90.9) | 36 (46.8) | 60.8 (34–76) |
| Behavioral variant of frontotemporal dementia | 7 | 7 (100) | 2 (28.6) | 59.1 (47–69) |
| Other types of frontotemporal dementia | 4 | 3 (75) | 1 (25) | 60.8 (54–71) |
| Semantic variant primary progressive aphasia | 5 | 4 (80) | 2 (40) | 58,2 (49–64) |
| Other dementia related diagnosesa | 2 | 1 (50.0) | 0 (0) | 65.0 (55–75) |
| Mild cognitive impairmentb | 7 | 7 (100) | 4 (57.1) | 59.4 (55–65) |
aIn this group one patient had vascular dementia and one unspecified dementia
bMost patients with MCI had a known heredity for AD