| rural | −0.067*** | −0.051** | −0.019 | −0.066*** | −0.082 | 
| 
 | (0.022) | (0.026) | (0.050) | (0.022) | (0.055) | 
| marriage | −0.016 | 0.002 | 0.003 | −0.004 | −0.031 | 
| 
 | (0.029) | (0.037) | (0.044) | (0.029) | (0.052) | 
| population | 0.003 | 0.002 | 0.007 | −0.004 | 0.021* | 
| 
 | (0.005) | (0.006) | (0.007) | (0.005) | (0.011) | 
| health | 0.010 | 0.002 | 0.009 | −0.004 | 0.026** | 
| 
 | (0.007) | (0.009) | (0.009) | (0.007) | (0.013) | 
| lnincome | −0.115*** | −0.181** | −0.060 | −0.181 | 0.020 | 
| 
 | (0.038) | (0.072) | (0.045) | (0.303) | (0.060) | 
| lnincome2 | 0.005*** | 0.010** | 0.002 | 0.011 | −0.003 | 
| 
 | (0.002) | (0.004) | (0.003) | (0.013) | (0.004) | 
| lnconsume | 0.111*** | 0.094*** | 0.116*** | 0.083*** | 0.127*** | 
| 
 | (0.012) | (0.018) | (0.016) | (0.012) | (0.024) | 
| lnhouseasset | −0.117*** | −0.121*** | −0.118*** | −0.107*** | −0.136*** | 
| 
 | (0.008) | (0.012) | (0.011) | (0.010) | (0.013) | 
| finasset | −1.600*** | −1.507*** | −1.640*** | −1.379*** | −1.842*** | 
| 
 | (0.113) | (0.140) | (0.175) | (0.105) | (0.340) | 
| lncominsurance | −0.004 | −0.000 | −0.008** | −0.002 | −0.009 | 
| 
 | (0.002) | (0.004) | (0.004) | (0.002) | (0.006) | 
| work | −0.083 | 0.008 | −0.167** | −0.086 | −0.088 | 
| 
 | (0.059) | (0.233) | (0.065) | (0.072) | (0.094) | 
| hospital | 0.052*** | 0.019 | 0.085*** | 0.040** | 0.073** | 
| 
 | (0.017) | (0.024) | (0.026) | (0.018) | (0.035) | 
| socialnet | 0.740*** | 0.573*** | 0.866*** | 0.525*** | 1.101*** | 
| 
 | (0.030) | (0.035) | (0.046) | (0.027) | (0.066) | 
| Model | IV-Tobit | IV-Tobit | IV-Tobit | IV-Tobit | IV-Tobit | 
| N | 8720 | 3985 | 4565 | 5339 | 3381 |