| Value |
Category |
| 1 |
Improved a lot |
| 2 |
Improved a little |
| 3 |
Stayed the same |
| 4 |
Worsened |
| 5 |
Significantly worsened |
| 998 |
Don't know |
| 999 |
Refuse to answer |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.