Table 1.
Characteristics of the 2010 and 2015 study cohorts.
| Total | 2010 | 2015 | Statistics | P* |
|---|---|---|---|---|
| 5581 | 5542 | |||
| Age (years) | 49.281 | 0.000 | ||
| 60−69 | 3078 (55.2) | 2882 (52.0) | ||
| 70−79 | 1858 (33.3) | 1765 (31.8) | ||
| ≥80 | 645 (11.6) | 895 (16.1) | ||
| Mean ± SE | 69.83 ± 7.27 | 70.50 ± 7.84 | −4.668 | 0.000 |
| Gender | 3.462 | 0.063 | ||
| Male | 2484 (44.5) | 2564 (46.3) | ||
| Female | 3097 (55.5) | 2978 (53.7) | ||
| Education | 12.951 | 0.002 | ||
| Illiterate | 2040 (36.6) | 2160 (39.0) | ||
| Primary school | 2546 (45.6) | 2520 (45.5) | ||
| Middle school and above | 995 (17.8) | 862 (15.6) | ||
| Widowed/Separated/Single | 1005 (18.0) | 851 (15.4) | 14.069 | 0.000 |
| No/little social activity | 2457 (44.0) | 958 (17.3) | 934.398 | 0.000 |
| Vascular risk factors | ||||
| Heart disease | 509 (9.1) | 638 (11.5) | 17.201 | 0.000 |
| Diabetes | 392 (7.0) | 530 (9.6) | 23.590 | 0.000 |
| Hypertension | 2100 (37.6) | 2242 (40.5) | 9.339 | 0.002 |
| Obesity | 548 (9.8) | 119 (2.1) | 290.337 | 0.000 |
| Lifestyle habit | ||||
| Smoking | 1381 (24.7) | 1633 (29.5) | 31.376 | 0.000 |
| Alcohol consumption | 971 (17.4) | 1280 (23.1) | 55.931 | 0.000 |
*P value for chi-square or t-test for significant difference in proportion or mean between years.