Table 1.
Demographic characteristics of the sample (n = 1168).
| Variable | N | Percentage |
|---|---|---|
| Age (years) | ||
| 60–69 | 583 | 49.9 |
| 70–79 | 427 | 36.6 |
| 80 or above | 158 | 13.5 |
| Gender-female | 612 | 52.4 |
| Education | ||
| No formal education | 91 | 7.8 |
| Primary school | 236 | 20.2 |
| Junior high school | 378 | 32.4 |
| Senior high school/technical secondary school | 262 | 22.4 |
| Post-secondary and above | 201 | 17.2 |
| Monthly income (in RMB) | ||
| Less 1000 ($154.7) | 208 | 17.9 |
| 1000–2999 | 530 | 45.7 |
| 3000 ($464.1) and above | 421 | 36.3 |
| Currently married | 943 | 80.7 |
| Currently working | 78 | 6.7 |
| Self-reported insomnia | 372 | 31.8 |
| Self-reported chronic diseases | 780 | 66.8 |
| Body Mass index (Kg/m2) | ||
| <18.5 | 51 | 4.4 |
| 18.5–23.9 | 522 | 44.7 |
| 24.0–27.9 | 481 | 41.2 |
| ≥28.0 | 114 | 9.8 |