Table 3.
Descriptive statistics for individual-level independent variables, China Health and Retirement Survey 2011
| Variables | Mean/proportion | SD | Min | Max |
|---|---|---|---|---|
| Age | 61.01 | 9.81 | 45 | 103 |
| Male | 0.48 | 0.50 | 0 | 1 |
| Marital status (married = 1) | 0.88 | 0.33 | 0 | 1 |
| Family size | 3.65 | 1.79 | 1 | 16 |
| Urban residents | 0.40 | 0.49 | 0 | 1 |
| Illiterate | 0.27 | 0.46 | 0 | 1 |
| Low education | 0.39 | 0.49 | 0 | 1 |
| Intermediate education | 0.21 | 0.41 | 0 | 1 |
| High education | 0.13 | 0.33 | 0 | 1 |
| Household income (1000 yuan) | 25.10 | 46.46 | 0 | 2700 |
| Quintile: 1st (1000 yuan) | 1.16 | 0.87 | 0 | 3 |
| Quintile: 2nd (1000 yuan) | 6.36 | 2.20 | 30.11 | 30.30 |
| Quintile: 3rd (1000 yuan) | 15.12 | 3.17 | 10.32 | 20.91 |
| Quintile: 4th (1000 yuan) | 28.68 | 5.10 | 20.92 | 38.40 |
| Quintile: 5th (1000 yuan) | 74.47 | 85.45 | 38.40 | 2700 |
Source: 2011 CHARLS Wave 1 (Baseline)