Table 4 Covariates balancing test of PSM: Mean differences before and after matching
From: The impact of medical insurance on family financial support: evidence from CHARLS in China
Variable | Mean | % reduction | |||
|---|---|---|---|---|---|
| Â | Treated | Control | % bias | |bias| | |
Age | U | 60.664 | 61.509 | -8.4 | 46.0 |
M | 60.664 | 61.12 | -4.5 | ||
Male | U | 0.480 | 0.428 | 10.5 | 89.6 |
M | 0.480 | 0.475 | 1.1 | ||
Urban resident | U | 0.203 | 0.312 | -25 | 95.5 |
M | 0.203 | 0.208 | -1.1 | ||
Marriage status | U | 0.883 | 0.806 | 21.3 | 82.5 |
M | 0.883 | 0.869 | 3.7 | ||
No formal education | U | 0.245 | 0.302 | -12.9 | 95.1 |
M | 0.244 | 0.242 | 0.6 | ||
Can read and write | U | 0.197 | 0.221 | -6 | 96.9 |
M | 0.197 | 0.197 | 0.2 | ||
Primary school | U | 0.226 | 0.200 | 6.5 | 72 |
M | 0.226 | 0.219 | 1.8 | ||
Secondary school or above | U | 0.332 | 0.277 | 12 | 80 |
M | 0.332 | 0.343 | -2.4 | ||
Public pensions | U | 0.602 | 0.294 | 65.1 | 98.5 |
M | 0.602 | 0.606 | -1 | ||
Self-rated health status | U | 3.042 | 3.083 | -4.2 | 46.8 |
M | 3.042 | 3.020 | 2.3 | ||
Number of children | U | 3.029 | 3.162 | -7.7 | 74 |
M | 3.029 | 3.063 | -2 | ||
Living arrangement | U | 0.280 | 0.349 | -15 | 80.8 |
M | 0.279 | 0.293 | -2.9 | ||
Family financial assets | U | 0.047 | 0.031 | 6.6 | 89.2 |
M | 0.047 | 0.045 | 0.7 | ||