Table 3.
Descriptive summary data showing risk levels by timepoint for participant-reported dementia risk behaviours and lifestyle factors
| Dementia risk factor | Baseline | Oct-20 | Oct-21 | Oct-22 |
|---|---|---|---|---|
| n = 3038 | n = 1995 | n = 2099 | n = 2992 | |
| Total Score | ||||
| Mean (SD) | 2.17 (1.24) | 1.74 (1.13) | 1.61 (1.12) | 1.66 (1.11) |
| Median [Min, Max] | 2.00 [0, 8.00] | 1.50 [0, 6.50] | 1.50 [0, 6.50] | 1.50 [0, 6.50] |
| Alcohol Risk | ||||
| high | 390 (12.8%) | 175 (8.8%) | 173 (8.2%) | 258 (8.6%) |
| medium | 909 (29.9%) | 548 (27.5%) | 525 (25.0%) | 773 (25.8%) |
| low | 1533 (50.5%) | 1201 (60.2%) | 1307 (62.3%) | 1806 (60.4%) |
| unknown | 206 (6.8%) | 71 (3.6%) | 94 (4.5%) | 155 (5.2%) |
| BMI Risk | ||||
| high | 663 (21.8%) | 403 (20.2%) | 438 (20.9%) | 657 (22.0%) |
| medium | 1037 (34.1%) | 716 (35.9%) | 731 (34.8%) | 1089 (36.4%) |
| low | 1204 (39.6%) | 871 (43.7%) | 928 (44.2%) | 1240 (41.4%) |
| unknown | 134 (4.4%) | 5 (0.3%) | 2 (0.1%) | 6 (0.2%) |
| Hypertension Risk | ||||
| high | 123 (4.0%) | 84 (4.2%) | 76 (3.6%) | 116 (3.9%) |
| medium | 69 (2.3%) | 40 (2.0%) | 55 (2.6%) | 74 (2.5%) |
| low | 2831 (93.2%) | 1865 (93.5%) | 1965 (93.6%) | 2798 (93.5%) |
| unknown | 15 (0.5%) | 6 (0.3%) | 3 (0.1%) | 4 (0.1%) |
| Cholesterol Risk | ||||
| high | 438 (14.4%) | 228 (11.4%) | 221 (10.5%) | 287 (9.6%) |
| medium | 110 (3.6%) | 96 (4.8%) | 71 (3.4%) | 151 (5.0%) |
| low | 2472 (81.4%) | 1666 (83.5%) | 1803 (85.9%) | 2553 (85.3%) |
| unknown | 18 (0.6%) | 5 (0.3%) | 4 (0.2%) | 1 (0.0%) |
| Diabetes Risk | ||||
| high | 482 (15.9%) | 249 (12.5%) | 234 (11.1%) | 324 (10.8%) |
| medium | 41 (1.3%) | 28 (1.4%) | 30 (1.4%) | 42 (1.4%) |
| low | 2490 (82.0%) | 1716 (86.0%) | 1835 (87.4%) | 2624 (87.7%) |
| unknown | 25 (0.8%) | 2 (0.1%) | 0 (0%) | 2 (0.1%) |
| Smoking Risk | ||||
| high | 59 (1.9%) | 29 (1.5%) | 33 (1.6%) | 49 (1.6%) |
| medium | 41 (1.3%) | 12 (0.6%) | 14 (0.7%) | 27 (0.9%) |
| low | 2932 (96.5%) | 1945 (97.5%) | 2051 (97.7%) | 2913 (97.4%) |
| unknown | 6 (0.2%) | 9 (0.5%) | 1 (0.0%) | 3 (0.1%) |
| Cognitive Activity Risk | ||||
| high | 1242 (40.9%) | 567 (28.4%) | 440 (21.0%) | 622 (20.8%) |
| low | 1763 (58.0%) | 1385 (69.4%) | 1600 (76.2%) | 2307 (77.1%) |
| unknown | 33 (1.1%) | 43 (2.2%) | 59 (2.8%) | 63 (2.1%) |
| Physical Activity Risk | ||||
| high | 269 (8.9%) | 82 (4.1%) | 92 (4.4%) | 159 (5.3%) |
| low | 2677 (88.1%) | 1902 (95.3%) | 1998 (95.2%) | 2818 (94.2%) |
| unknown | 92 (3.0%) | 11 (0.6%) | 9 (0.4%) | 15 (0.5%) |
| Mediterranean Diet Risk | ||||
| high | 171 (5.6%) | 79 (4.0%) | 81 (3.9%) | 138 (4.6%) |
| medium | 2220 (73.1%) | 1344 (67.4%) | 1363 (64.9%) | 2008 (67.1%) |
| low | 633 (20.8%) | 548 (27.5%) | 640 (30.5%) | 830 (27.7%) |
| unknown | 14 (0.5%) | 24 (1.2%) | 15 (0.7%) | 16 (0.5%) |
BL: baseline completed between Oct 2019 and June 2022; Oct-20: data from sample with BL prior to August 2020 and 2020 survey data; Oct-21: data from sample with BL prior to August 2021 and 2021 survey data; Oct-22: data from sample with BL prior to August 2022 and survey data in 2022.