| 变量 | 模型1 | 模型2 | 模型3 | 
| lninc | 0.19** (0.073) | 0.035 (0.087) | 
 | 
| healthy | 
 | 
 | 0.34*** (0.09) | 
| region | 
 | −0.453*** (0.125) | 
 | 
| aged | 
 | −0.002 (0.007) | 
 | 
| sex | 
 | −0.072** (0.03) | 
 | 
| marry | 
 | 0.545*** (8.268) | 
 | 
| party | 
 | 0.101* (0.045) | 
 | 
| census register | 
 | 0.144 (0.218) | 
 | 
| house property | 
 | −0.144 (0.207) | 
 | 
| edu | 
 | 0.008 (0.03) | 
 |