Table 1 Characteristics at Baseline by Cognitive Function Trajectory Groups
Variable | High-stable | Medium-decreasing | Rapid-decreasing | p value |
|---|---|---|---|---|
N | 1226 | 1526 | 357 | Â |
Age, ys | 81.8 (5.0) | 81.6 (4.6) | 80.0 (4.3) | < 0.001 |
Males, n (%) | 913 (74.5) | 400 (26.2) | 88 (24.7) | < 0.001 |
Residence, n (%) | Â | Â | Â | Â |
 City | 322 (26.3) | 341 (22.4) | 58 (16.3) |  |
 Town | 388 (31.7) | 491 (32.2) | 107 (30.0) |  |
 Village | 516 (42.1) | 694 (45.5) | 192 (53.8) | < 0.001 |
Educational, n (%) | 703 (57.3) | 377 (24.7) | 76 (21.3) | < 0.001 |
Marital, n (%) | 653 (53.3) | 495 (32.4) | 126 (35.3) | < 0.001 |
Cohabitant, n (%) | Â | Â | Â | Â |
 Family | 1045 (85.2) | 1188 (77.9) | 278 (77.9) |  |
 Solitary | 149 (12.2) | 281 (18.4) | 59 (16.5) |  |
 Live in institution | 32 (2.6) | 57 (3.7) | 20 (5.6) | < 0.001 |
Smoker, n (%) | 369 (30.1) | 230 (15.1) | 60 (16.8) | < 0.001 |
Drinker, n (%) | 391 (31.9) | 288 (18.9) | 71 (19.9) | < 0.001 |
Fruit eater, n (%) | 403 (32.9) | 391 (25.6) | 82 (23.0) | < 0.001 |
Vegetable eater, n (%) | 1101 (89.9) | 1321 (86.6) | 299 (83.8) | 0.002 |
PA, n (%) | 558 (45.5) | 493 (32.3) | 92 (25.8) | < 0.001 |
Weight, kg | 53.1 (9.8) | 49.0 (9.2) | 47.5 (8.3) | < 0.001 |
RHR, time/minute | 73.0 [68.0, 79.0] | 74.0 [69.0, 80.0] | 72.5 [68.0, 78.0] | 0.005 |
MMSE, score | 28.0 (2.6) | 25.9 (4.4) | 22.2 (7.5) | < 0.001 |
Hypertension, n (%) | 152 (12.4) | 219 (14.4) | 59 (16.5) | 0.098 |
Diabetes, n (%) | 14 (1.1) | 24 (1.6) | 3 (0.8) | 0.432 |
Stroke, n (%) | 37 (3.0) | 39 (2.6) | 23 (6.4) | < 0.001 |
Heart disease, n (%) | 67 (5.5) | 84 (5.5) | 9 (2.5) | 0.058 |