Categorical variables | Values | Unweighted (N = 2895) | Weighted (N = 2930) | ||
Sample size | Percentage | Sample size | Percentage | ||
Gender | Male | 1559 | 53.9 | 1672 | 42.9 |
Female | 1336 | 46.1 | 1258 | 57.1 | |
Residency | Rural | 1226 | 42.3 | 1395 | 47.6 |
Urban | 1669 | 57.7 | 1535 | 52.4 | |
Birth cohort | In or before 1977 | 2402 | 83.0 | 2409 | 82.2 |
In or after 1978 | 493 | 17.0 | 521 | 17.8 | |
Educational attainment | Primary school or below | 1011 | 34.9 | 1072 | 36.6 |
Middle school | 933 | 32.2 | 981 | 33.5 | |
High school or equivalent | 515 | 17.8 | 499 | 17.0 | |
Vocational college or above | 436 | 15.1 | 377 | 12.9 | |
Occupational status | Managerial/professional employee | 396 | 13.7 | 357 | 12.2 |
Ordinary non-physical worker | 352 | 12.2 | 310 | 10.6 | |
Small business owner/individual businessman | 280 | 9.7 | 300 | 10.2 | |
Foreman/skilled worker | 291 | 10.1 | 276 | 9.4 | |
Unskilled physical worker | 452 | 15.6 | 450 | 15.4 | |
Agricultural laborer | 1124 | 38.8 | 1236 | 42.2 | |
Continuous variables | Range | Mean | Standard deviation | Mean | Standard deviation |
Age | [18,96] | 47.3 | 14.8 | 46.4 | 14.4 |
Annual income (RMB) | [50,6000000] | 22108.5 | 118221.9 | 21250.9 | 112438.8 |
Natural log of annual income | (3.91, 15.61) | 9.2 | 1.2 | 9.2 | 1.2 |