Diagnostic groups | bvFTD (n = 57) | PPD (n = 71) | AD (n = 60) | Controls (n = 39) | p-value |
---|---|---|---|---|---|
Age | 64 (8)b,d | 56 (9)a,c | 66 (7) b,d | 57 (8) a,c | < 0.001 |
Female sex (%) | 21 (37%) | 27 (38%) | 27 (45%) | 13 (33%) | 0.737 |
Psychotropic medication use (% Yes) | 16 (30%) | 36 (51%)d | 21 (35%) | 5 (15%)b | 0.014 |
CSF biomarkers (pg/mL) | |||||
NfL | 1630 (1052)b,c,d | 369 (178)a,c | 848 (332)a,b,d | 337 (187)a,c | < 0.001 |
SNAP25 | 37 (32)c | 33 (22)c | 51 (19)a,b,d | 28 (7)c | < 0.001 |
Ng | 389 (312)c | 351 (230)c | 723 (1069)a,b,d | 283 (107)c | < 0.001 |
NPTX2 | 401 (270)b,d | 583 (300)a | 477 (227)b | 542 (240)a | < 0.001 |
GluR4 | 1100 (995) | 1223 (1070) | 1112 (510) | 1070 (386) | 0.456 |
Cognitive domains | |||||
Memory | − 0.13 (0.6)b,c,d | 0.41 (0.6)a,c | − 0.95 (0.7)a,b,d | 0.73 (0.6)a,c | < 0.001 |
Attention | − 0.35 (1.0)b,d | 0.14 (0.8)a,c,d | − 0.27 (0.8)b,d | 0.53 (0.3)a,b,c | < 0.001 |
Executive functioning | − 0.44 (0.9)b,d | 0.16 (0.6)a,c,d | − 0.43 (0.8)b,d | 0.64 (0.4)a,b,c | < 0.001 |
Language | − 0.29 (0.7)b,d | 0.32 (0.5)a,c | − 0.44 (0.9)b,d | 0.60 (0.5)a,c | < 0.001 |
Visuospatial functioning | 0.11 (0.5)c | 0.19 (0.5)c | − 0.64 (1.1)a,b,d | 0.34 (0.3)c | < 0.001 |
Total cognitive score | − 0.43 (0.8)b,d | 0.2 (0.7)a,c,d | − 0.60 (0.7)b,d | 0.60 (0.3)a,b,c | < 0.001 |
Other tests | |||||
MMSE | 24.3 (5)b,d | 26.9 (2)a,c | 20.7 (5)b,d | 28.3 (1)a,c | < 0.001 |
Geriatric depression scale | 3.2 (3)b | 6.3 (4)a,c,d | 2.9 (3)b | 3.4 (3)b | < 0.001 |
Ekman 60 faces test | 33.7 (7)b | 42.7 (7)a | - | - | 0.023 |
FTLD- CDR | 7 (4) | - | - | - | - |