Table 1.
Selection of demographic, social and clinical characteristics of patients included in the NorCog cohort at baseline
| Patients included in NorCog during 2009–2021 | Missing data total cohort, n (%) | |||||
| Total cohort | NCI/SCI | MCI | Dementia | Other diagnoses | ||
| n (%) | 18 120 (100) | 2258 (12.5) | 6307 (34.8) | 8368 (46.2) | 1187 (6.6) | |
| Age (years), mean (SD) | 73.7 (9.9) | 67.3 (11.7) | 73.1 (9.7) | 76.3 (8.2) | 70.5 (10.9) | 0 |
| Sex (female), n (%) | 9443 (52.1) | 1167 (51.7) | 3097 (49.1) | 4599 (55.0) | 580 (48.9) | 0 |
| Education (years), mean (SD) | 11.3 (3.8) | 12.5 (3.9) | 11.5 (3.8) | 10.8 (3.6) | 11.3 (3.9) | 1521 (8.4) |
| Married/cohabiting, n (%) | 10 709 (61.6) | 1402 (65.0) | 3800 (62.7) | 4812 (59.9) | 695 (61.2) | 729 (4.0) |
| Living alone, n (%) | 6589 (36.4) | 737 (32.6) | 2284 (36.2) | 3135 (37.5) | 433 (36.5) | 687 (3.8) |
| Public care, n (%) | 5639 (32.1) | 388 (18.1) | 1626 (26.6) | 3260 (40.0) | 356 (31.6) | 597 (3.3) |
| MMSE score, mean (SD) | 23.6 (4.6) | 27.1 (3.3) | 25.2 (3.4) | 21.0 (4.4) | 26.2 (3.8) | 478 (2.6) |
| Information from informant obtained, n (%) | 17 234 (95.1) | 1983 (87.8) | 5907 (93.7) | 8275 (98.9) | 1069 (90.1) | |
Numbers of patients with missing data are shown in the far right column.
MCI, mild cognitive impairment; MMSE, Mini-Mental State Examination; NCI, no cognitive impairment; NorCog, Norwegian Registry of Persons Assessed for Cognitive Symptoms; SCI, subjective cognitive impairment.