| Obs. | Mean | S. D. | 95% CI | T-value of the diff. | p-value |
---|---|---|---|---|---|---|
Sample 1: difficulty in physical functioning (2018) | ||||||
 Late retirees (2015) | 4791 | 1.567 | 0.555 | [1.916, 1.956] | 27.863 | 0.000 |
 Non-late retirees (2015) | 5236 | 1.937 | 0.748 | [1.552, 1.583] |  |  |
Sample 2: problems of cognitive status (2018) | ||||||
 Late retirees (2015) | 4168 | 3.559 | 0.628 | [3.540, 3.578] | 5.321 | 0.000 |
 Non-late retirees (2015) | 4499 | 3.632 | 0.649 | [3.614, 3.651] |  |  |