| Value | Category | Cases | |
|---|---|---|---|
| 1 | improved | 941 |
52.9%
|
| 2 | stayed same | 508 |
28.6%
|
| 3 | worsened | 297 |
16.7%
|
| 7 | don't know | 33 |
1.9%
|
| 8 | refuse to answer | 0 |
0%
|
| Sysmiss | 376 |