Table 2.
Demographic characteristics by etiological dementia diagnoses registered in NorCog at baseline during 2009–2021
| AD dementia | Mixed AD and VaD | VaD | DLB | PDD | FTD | Unspecified dementia | Other dementia types | |
| n (%) | 4481 (53.5) | 1047 (12.5) | 925 (11.1) | 343 (4.1) | 199 (2.4) | 131 (1.6) | 1154 (13.8) | 88 (1.1) |
| Age (years), mean (SD) | 75.9 (8.3) | 79.0 (6.7) | 78.4 (7.2) | 74.3 (8.2) | 75.0 (6.5) | 66.8 (10.9) | 75.9 (8.1) | 70.6 (9.1) |
| Sex (female), n (%) | 2750 (61.4) | 552 (52.7) | 411 (44.4) | 140 (40.8) | 70 (35.2) | 61 (46.6) | 574 (49.7) | 40 (45.5) |
| Education (years), mean (SD) | 10.9 (3.5) | 10.6 (4.1) | 10.3 (3.4) | 11.3 (3.6) | 11.4 (3.8) | 12.3 (3.6) | 10.5 (3.5) | 11.5 (3.3) |
| Married/cohabiting, n (%) | 2606 (60.3) | 569 (57.1) | 505 (56.7) | 223 (67.4) | 151 (77.8) | 97 (77.6) | 610 (55.7) | 51 (61.4) |
| Living alone, n (%) | 1676 (38.8) | 428 (41.9) | 371 (41.5) | 98 (29.4) | 42 (22.0) | 30 (23.8) | 461 (41.4) | 28 (32.9) |
| Public care, n (%) | 1429 (32.7) | 516 (50.4) | 510 (56.5) | 123 (37.3) | 96 (50.0) | 32 (25.4) | 517 (46.0) | 36 (43.4) |
| MMSE score, mean (SD) | 20.8 (4.4) | 20.7 (4.2) | 21.4 (4.3) | 21.5 (4.5) | 21.7 (4.3) | 24.1 (3.7) | 20.9 (4.6) | 23.7 (4.0) |
AD, Alzheimer’s disease; DLB, dementia with Lewy bodies; FTD, frontotemporal dementia; MMSE, Mini-Mental State Examination; NorCog, Norwegian Registry of Persons Assessed for Cognitive Symptoms; PDD, Parkinson’s disease dementia; VaD, vascular dementia.