Table 1.
Baseline characteristics according to the intellectual activity and social activity scores.
| Intellectual activity scores | Social activity scores | |||||||
|---|---|---|---|---|---|---|---|---|
| 0 | 1–2 | ≥3 | P-valuea | 0 | 1–2 | ≥3 | P-valuea | |
| No. of participants | 5,395 | 848 | 646 | 4,302 | 1,147 | 1,440 | ||
| Age, mean (SD) (years) | 67.4 (6.1) | 66.4 (5.5) | 67.0 (5.8) | <0.0001 | 67.2 (5.9) | 66.9 (5.8) | 67.7 (6.3) | 0.0023 |
| Male, n (%) | 2547 (47.2) | 533 (62.9) | 403 (62.4) | <0.0001 | 2,273 (52.8) | 594 (51.8) | 616 (42.8) | <0.0001 |
| Economic development region, n (%) | 0.0084 | 0.5143 | ||||||
| >$10,000 | 1,883 (34.9) | 294 (34.8) | 235 (36.4) | 1,508 (35.1) | 418 (36.5) | 486 (33.8) | ||
| $10,000 to > 7,000 | 2,487 (46.2) | 439 (51.9) | 319 (49.4) | 2,038 (47.4) | 511 (44.6) | 696 (48.4) | ||
| ≤ $7,000 | 1,019 (18.9) | 113 (13.4) | 92 (14.2) | 752 (17.5) | 217 (18.9) | 255 (17.8) | ||
| Actual sleep <6 h, n (%) | 1,974 (36.6) | 264 (31.1) | 188 (29.1) | <0.0001 | 1,556 (36.2) | 378 (33.0) | 492 (34.2) | 0.0816 |
| Without falling down experience, n (%) | 4,395 (81.6) | 704 (83.0) | 541 (83.8) | 0.1114 | 3,565 (83.0) | 926 (80.7) | 1,149 (79.8) | 0.0033 |
| Never smoker, n (%) | 3,032 (58.0) | 337 (41.0) | 276 (44.0) | <0.0001 | 2,208 (53.0) | 587 (52.4) | 850 (60.8) | <0.0001 |
| Medical history, n (%) | ||||||||
| Cancer | 87 (1.6) | 21 (2.5) | 18 (2.8) | 0.0112 | 69 (1.6) | 24 (2.1) | 33 (2.3) | 0.0728 |
| Diabetes mellitus | 606 (11.5) | 107 (12.9) | 117 (18.6) | <0.0001 | 469 (11.2) | 157 (14.0) | 204 (14.5) | 0.0003 |
| Heart disease | 1,014 (19.6) | 191 (23.6) | 151 (25.2) | 0.0001 | 774 (18.8) | 250 (22.7) | 332 (24.5) | <0.0001 |
| Hypertension | 2,146 (42.4) | 321 (40.2) | 274 (45.1) | 0.5427 | 1,687 (41.8) | 428 (39.5) | 626 (46.4) | 0.0154 |
| Stroke | 385 (7.2) | 48 (5.8) | 58 (9.2) | 0.3467 | 297 (7.0) | 69 (6.1) | 125 (8.8) | 0.0621 |
a
Mantel–Haenszel test for proportion trends and one-way ANOVA for continuous measures.