Table 1.
Characteristics of respondents.
| Characteristics | All (N = 12,208) |
|---|---|
| Age, years | |
| Mean (SD) | 52.59 ± 15.31 |
| Gender | |
| Men, n (%) | 5746 (47.07) |
| Women, n (%) | 6462 (52.93) |
| Missing | |
| Income, RMB yuan | |
| Mean (SD) | 24942.94 ± 39654.58 |
| Education | |
| Illiterate, n (%) | 871 (7.13) |
| Elementary, n (%) | 2821 (23.11) |
| Middle school, n (%) | 4069 (33.33) |
| High school, n (%) | 2937 (24.06) |
| University, n (%) | 1510 (12.37) |
| Marital status | |
| Unmarried, n (%) | 648 (5.31) |
| Married, n (%) | 10,539 (86.33) |
| Others, n (%) | 1021 (8.36) |
| Basic medical insurance | |
| No, n (%) | 328 (2.69) |
| Yes, n (%) | 11,880 (97.31) |
| Working status | |
| No, n (%) | 6445 (52.79) |
| Yes, n (%) | 5763 (47.21) |
| Birthplace | |
| North China, n (%) | 965 (7.90) |
| Northeast, n (%) | 1714 (14.04) |
| East China, n (%) | 3244 (26.57) |
| Central China, n (%) | 3063 (25.09) |
| South China, n (%) | 1191 (9.76) |
| Western China, n (%) | 2031 (16.64) |
| Urbanization index | |
| Mean (SD) | 73.98 ± 17.07 |
| Residential areas | |
| Urban, n (%) | 4875 (39.93) |
| Rural, n (%) | 7333 (60.07) |
| Geographic region | |
| Eastern China, n (%) | 5942 (48.67) |
| Central China, n (%) | 3074 (25.18) |
| Western China, n (%) | 3192 (26.15) |