Table 1.
Demographic characteristics of study population.
| Object characteristics | Number of people | % |
|---|---|---|
| Age (years) | ||
| 40~44 | 185 | 13.8 |
| 45~49 | 380 | 28.3 |
| 50~54 | 494 | 36.8 |
| 55~65 | 282 | 21.0 |
| Marriage | ||
| Married | 1307 | 97.5 |
| Other | 34 | 2.5 |
| Working status | ||
| Retirement | 490 | 36.5 |
| Occupation | 785 | 58.5 |
| Other | 66 | 4.9 |
| Monthly per capita household income (RMB) | ||
| 2999 or below | 272 | 20.3 |
| 3000-4999 | 421 | 31.4 |
| 5000-9999 | 345 | 25.7 |
| 10000 or above | 303 | 22.6 |
| BMI (kg/m2) | ||
| <18.5 | 89 | 6.6 |
| 18.50~23.9 | 875 | 65.2 |
| ≥24 | 296 | 22.1 |
| Education background | ||
| Primary and illiterate | 188 | 14.0 |
| Middle school | 651 | 48.5 |
| High school | 436 | 32.5 |
| University and above | 66 | 4.9 |