Table 2 Comparison of STAD assessment results according to dementia incidence in all participants
|  | Overall n = 4298 | Participants without dementia incidence n = 4205 | Participants with dementia incidence n = 93 | P-values* |
|---|---|---|---|---|
STAD items | ||||
 (1) Do you forget where you have left things more than you used to? (yes, %) | 2463 (57.5) | 2392 (56.9) | 71 (76.3) | < 0.001 |
 (2) Do other people find you forgetful? (yes, %) | 840 (19.5) | 808 (19.2) | 32 (34.4) | < 0.001 |
 (3) Do you find yourself not knowing today’s date? (yes, %) | 1038 (24.2) | 997 (23.7) | 41 (44.1) | < 0.001 |
 (4) Have you dropped many of your activities and interests? (yes, %) | 1022 (23.8) | 987 (23.5) | 35 (37.6) | 0.002 |
 (5) Do you often get bored? (yes, %) | 620 (14.4) | 599 (14.2) | 21 (22.6) | 0.024 |
 (6) Do you feel helpless? (yes, %) | 1207 (28.1) | 1163 (27.7) | 44 (47.3) | < 0.001 |
 (7) Do you prefer to stay at home, rather than going out and doing new things? (yes, %) | 1420 (33.0) | 1381 (32.8) | 39 (41.9) | 0.065 |
 (8) In the last 2 weeks have you felt tired without a reason? (yes, %) | 541 (12.6) | 517 (12.3) | 24 (25.8) | < 0.001 |
 (9) Do you go out less frequently compared to last year? (yes, %) | 606 (14.1) | 583 (13.9) | 23 (24.7) | 0.003 |
 (10) Do you engage in low levels of physical exercise aimed at health at least five times a week? (no, %) | 2707 (63.0) | 2640 (62.8) | 67 (72.0) | 0.067 |
 (11) Do you use maps to go to unfamiliar places? (no, %) | 1575 (36.6) | 1521 (36.2) | 54 (58.1) | < 0.001 |
 (12) Do you engage in cognitive stimulation such as board games and learning? (no, %) | 2163 (50.3) | 2105 (50.1) | 58 (62.4) | 0.019 |
 STAD total score (points) | 3.8 ± 2.2 | 3.7 ± 2.2 | 5.5 ± 2.3 | < 0.001 |