Demographic variables of the three patient groups
| Group | fv-FTD | SD | AD |
|---|---|---|---|
| Values are mean (SD) or n. | |||
| AD, Alzheimer’s disease; CDR, clinical dementia rating; fv-FTD, frontotemporal dementia, frontal variant; MMSE, mini-mental state examination; SD, semantic dementia. | |||
| n | 23 | 25 | 43 |
| Age (years) | 61.1 (6.6) | 65.1 (7.0) | 68.3 (7.7) |
| Sex (female:male) | 4:19 | 12:13 | 18:25 |
| Education (years) | 11.8 (2.4) | 11.4 (2.0) | 12.1 (3.5) |
| CDR grade 0.5:1:2:3 | 4:10:4:5 | 5:4:12:4 | 14:14:12:3 |
| MMSE score | 22.9 (7.4) (n=22) | 17.2 (8.3) (n=15) | 20.6 (5.7) (n=35) |