Table 2:
Descriptive statistical analysis of variables
| Variable | Number of observations | Mean | Standard deviation | Minimum | Maximum | ||
|---|---|---|---|---|---|---|---|
| Medical insurance | 4156 | Without any medical insurance | 166 | 2.60 | 0.84 | 0 | 3 |
| Medical insurance for urban workers | 483 | ||||||
| Medical insurance for urban residents | 210 | ||||||
| New rural cooperative medical insurance | 3297 | ||||||
| Health status | 4156 | 2.91 | 0.93 | 1 | 5 | ||
| Life satisfaction | 4156 | 3.11 | 0.75 | 1 | 5 | ||
| Gender | 4156 | 1.64 | 0.48 | 1 | 2 | ||
| Age | 4156 | 67.80 | 6.60 | 60 | 95 | ||
| Type of registered permanent residence | 4156 | 1.20 | 0.41 | 1 | 3 | ||
| Marital status | 4156 | 0.80 | 0.40 | 0 | 1 | ||
| Education level | 4156 | 1.22 | 0.56 | 1 | 4 | ||
| Nationality | 4156 | 0.94 | 0.25 | 0 | 1 | ||
| Relative income | 4156 | 1.97 | 0.96 | 1 | 5 | ||
| Number of chronic disease | 4156 | 1.52 | 1.46 | 0 | 8 | ||
| Smoker or non-smoker | 4156 | 0.17 | 0.37 | 0 | 1 | ||
| Drinker or non-drinker | 4156 | 0.27 | 0.44 | 0 | 1 | ||
| Number of leisure activities | 4156 | 1.27 | 0.67 | 0 | 7 | ||