Table 1.
Participant characteristics
| Female (n = 3483, 51.3%) | Male (n = 3300, 48.7%) | Total (n = 6783) | |
|---|---|---|---|
| Age (years) | |||
| 18–29 | 97 (2.8%) | 85 (2.6%) | 182 (2.7%) |
| 30–39 | 81 (2.3%) | 111 (3.4%) | 192 (2.8%) |
| 40–49 | 993 (28.5%) | 881 (26.7%) | 1874 (27.6%) |
| 50–59 | 870 (25.0%) | 744 (22.5%) | 1614 (23.8%) |
| 60–69 | 812 (23.3%) | 777 (23.5%) | 1589 (23.0%) |
| 70–79 | 630 (18.1%) | 702 (21.3%) | 1332 (19.6%) |
| Smell test score* | 10 (9–11) | 10 (9–11) | 10 (9–11) |
| Depressive symptoms | 327 (9.4%) | 122 (3.7%) | 449 (6.6%) |
| University education | 869 (24.9%) | 1097 (33.2%) | 1966 (29.0%) |
| CERAD verbal fluency* | 24.0 (20.0–28.0) | 23.0 (19.0–28.0) | 24.0 (19.0–28.0) |
| Higher values are better Cognitively impaired# |
398 (11.4%) | 361 (10.9%) | 759 (11.2%) |
| Trail Making Test A* | 33.0 (26.0–42.0) | 34.0 (27.0–44.0) | 34.0 (26.0–43.0) |
| Max score 180 | |||
| Lower values are better | |||
| Cognitively impaired# | 208 (6.0%) | 207 (6.3%) | 415 (6.1%) |
| Trail Making Test B/A* | 2.2 (1.8–2.8) | 2.3 (1.9–2.8) | 2.3 (1.9–2.8) |
| Lower values are better | |||
| Cognitively impaired# | 276 (7.9%) | 401 (12.2%) | 677 (10.0%) |
*Median (IQR)
#At least one standard deviation below age-, sex-, and education-specific norms from CERAD