General sample characteristics at baseline (2006)
| Characteristic | Number (N=6590) | Percentage |
|---|---|---|
| Perceived health status | ||
| Good | 2597 | 39.4 |
| Normal | 2128 | 32.3 |
| Poor | 1865 | 28.3 |
| Number of social activities | ||
| None | 1667 | 25.3 |
| Moderate | 4409 | 66.9 |
| Active | 514 | 7.8 |
| Sex | ||
| Male | 2859 | 43.4 |
| Female | 3731 | 56.6 |
| Age (years) | ||
| 45–54 | 2188 | 33.2 |
| 55–64 | 2016 | 30.6 |
| 65–74 | 1736 | 26.3 |
| 75–84 | 596 | 9.0 |
| >85 | 54 | 0.8 |
| Education | ||
| College graduate | 630 | 9.6 |
| High school graduate | 1799 | 27.3 |
| <High school | 4161 | 63.1 |
| Income | ||
| Q4 (high) | 1638 | 24.9 |
| Q3 | 1537 | 23.3 |
| Q2 | 1729 | 26.2 |
| Q1 (low) | 1686 | 25.6 |
| Marital status | ||
| Married | 5419 | 82.2 |
| Divorced, widowed, unmarried | 1171 | 17.8 |
| Type of household | ||
| With family | 6070 | 92.1 |
| Alone | 520 | 7.9 |
| Chronic disease | ||
| No | 3592 | 54.5 |
| Yes | 2998 | 45.5 |
| Job status | ||
| Yes | 2747 | 41.7 |
| No | 3843 | 58.3 |
| Smoking status | ||
| Current smoker | 1254 | 19.0 |
| Ex-smoker | 634 | 9.6 |
| Non-smoker | 4702 | 71.4 |
| Alcohol use | ||
| Current | 2587 | 39.3 |
| Past | 395 | 6.0 |
| Never | 3608 | 54.8 |
| Region | ||
| Urban | 4846 | 73.5 |
| Rural | 1744 | 26.5 |