| Variables | N | Mean | S.D | Min | Max |
| Age | 14,412 | 66.999 | 5.4098 | 60 | 80 |
| Gender | 14,412 | 0.5080 | 0.4999 | 0 | 1 |
| HuKou | 14,412 | 0.3986 | 0.4896 | 0 | 1 |
| Education | 14,192 | 3.0398 | 1.9055 | 1 | 10 |
| Married | 14,411 | 0.8350 | 0.3711 | 0 | 1 |
| Assets | 14,026 | 6.5454 | 3.0799 | 0 | 15.895 |
| Income | 14,350 | 5.9148 | 3.7166 | 0 | 12.724 |
| A-Children | 14,412 | 3.1574 | 1.4336 | 0 | 10 |
| D-Children | 14,412 | 0.1871 | 0.5361 | 0 | 6 |
| ADL | 14,328 | 6.5945 | 1.5925 | 6 | 24 |
| House | 14,204 | 0.8531 | 0.3532 | 0 | 1 |
| Health | 14,405 | 1.9237 | 0.7020 | 1 | 3 |
| Insurance | 14,412 | 0.8744 | 0.3311 | 0 | 1 |