Table 1 Demographic characteristics of the study patients (n = 922)
Characteristics | n (%) |
|---|---|
Gender | Â |
 Male | 522 (56.62) |
 Female | 400 (43.38) |
Age groups | |
  ≤ 34 | 27 (2.93) |
 35 ~ 49 | 101 (10.95) |
 50 ~ 64 | 347 (37.64) |
 65 ~ 79 | 354 (38.39) |
  ≥ 80 | 93 (10.09) |
Education | |
 Unschooled | 110 (11.93) |
 Elementary school | 249 (27.01) |
 Middle school | 302 (32.75) |
 High school | 149 (16.16) |
 Junior college or above | 112 (12.15) |
Employment | |
 Farmer | 198 (21.48) |
 Urban employee | 197 (21.37) |
 Retiree | 348 (37.74) |
 Freelancer | 140 (15.18) |
 Unemployed | 39 (4.23) |
Type of insurance | |
 UEBMI | 516 (55.97) |
 URRBMI | 406 (44.03) |
Family monthly income (CNY) a | |
  < 2000 | 179 (19.41) |
 2001 ~ 4000 | 246 (26.68) |
 4001 ~ 6000 | 217 (23.54) |
 6001 ~ 8000 | 103 (11.17) |
 8001 ~ 10,000 | 70 (7.59) |
  > 10,000 | 107 (11.61) |