Table 1 Characteristics of the study population (n = 882)
Variables | Frequency(n) | Percent |
|---|---|---|
Gender | ||
 Male | 387 | 43.9 |
 Female | 495 | 56.1 |
Age (Mean ± SD) = 65.87 ± 10.73 | ||
 35–46 | 53 | 6.0 |
 47–59 | 186 | 21.1 |
 60–72 | 413 | 46.8 |
  ≥ 73 | 230 | 26.1 |
Education | ||
 Illiterate | 303 | 34.4 |
 Primary school | 415 | 47.1 |
 Secondary school | 137 | 15.5 |
 High school | 10 | 1.1 |
 University or higher | 17 | 1.9 |
Family yearly income(RMB) | ||
  < 5000 | 183 | 20.7 |
 5000–10000 | 133 | 15.1 |
 10000–20000 | 228 | 25.8 |
 20000–30000 | 154 | 17.5 |
  ≥ 30000 | 184 | 20.9 |
Family yearly medical cost(RMB) | ||
  < 600 | 177 | 20.1 |
 600–1500 | 221 | 25.1 |
 1500–3000 | 179 | 20.3 |
 3000–1000 | 217 | 24.6 |
  ≥ 10000 | 88 | 10.0 |