Table 1. Characteristics of participants by cognitive category.
| Characteristic | Cognitive categorya | ||
|---|---|---|---|
| Dementia | CIND | Normal cognition | |
| n = 132 | n = 61 | n = 47 | |
| Sex, n (column %) | |||
| Male | 68 (52) | 35 (57) | 23 (49) |
| Female | 64 (49) | 26 (43) | 24 (51) |
| Median age, years (IQR) | |||
| At clinic | 82 (77–86) | 80 (75–83) | 75 (72–80) |
| Left school | 15 (15–16) | 15 (15–16) | 16 (15–16) |
| Retired | 60 (58–65) | 60 (58–67) | 61 (58–65) |
| Median symptom onset, months (IQR) | |||
| Time ago | 24 (12–36) | 18 (12–24) | 21 (12–36) |
| Type, n (column %) | |||
| Gradual | 111 (84) | 55 (90) | 43 (91) |
| Sudden | 13 (10) | 5 (8) | 0 (-) |
| Uncertain | 8 (6) | 1 (1) | 4 (9) |
| Course, n (column % | |||
| Progressive | 111 (84) | 42 (69) | 29 (62) |
| Stepwise | 2 (2) | 0 (-) | 0 (-) |
| Regressive | 1 (1) | 1 (2) | 1 (2) |
| Static | 5 (4) | 7 (11) | 9 (19) |
| Uncertain | 13 (10) | 11 (18) | 8 (17) |
| Fluctuation, n (column % | |||
| None | 112 (85) | 53 (87) | 45 (96) |
| Within 1 day | 12 (9) | 5 (8) | 1 (2) |
| Over several days | 8 (6) | 3 (5) | 1 (2) |
| Median ACE-III score (IQR) | |||
| Total (max 100) | 69 (61–74) | 82 (76–87) | 93 (90–95) |
| GP opinion, n (row %) | |||
| Normal cognition | 6 (18) | 9 (26) | 19 (56) |
| CIND | 52 (43) | 41 (34) | 27 (23) |
| Dementia | 74 (86) | 11 (13) | 1 (1) |
aDementia according to International Classification of Diseases 10th revision (ICD-10) definition; mild cognitive impairment (MCI) according to Petersen definition.
ACE-III = Addenbrookes’ Cognitive Examination III. CIND = Cognitive impairment not dementia.