Table 1 Descriptive statistics of the study sample
|  |  | Sample(N = 18,137) |
|---|---|---|
Age, mean (SD) | 61.36 (10.79) | |
Age group, years, n (%) | 45~54 | 5915 (32.6) |
55~64 | 5286 (29.1) | |
65~74 | 4722 (26.0) | |
75~ | 2214 (12.2) | |
Gender, n (%) | Male | 8637 (47.6) |
Female | 9500 (52.4) | |
Marital status, n (%) | Single a | 2173 (12.0) |
Married | 15,964 (88.0) | |
Education level, n (%) | Primary school or lower | 15,784 (87.0) |
Middle school | 1745 (9.6) | |
High school or above | 608 (3.4) | |
Employment status, n (%) | Unemployed | 11,282 (62.2) |
Employed | 6855 (37.8) | |
Number of chronic diseases, n (%) | 0 | 9376 (51.7) |
1 | 4988 (27.5) | |
2 | 2329 (12.8) | |
3 | 906 (5.0) | |
> = 4 | 538 (3.0) | |
EQ-5D vas, mean (SD) | Â | 76.02 (13.66) |
EQ-5D problems, n (%) | Some problems | 3337 (18.4) |
No problem | 14,800 (81.6) | |
EQ-5D index, mean (SD) | 0.95 (0.14) | |