| Value | Category | Cases | |
|---|---|---|---|
| 0 | Don't know | 225 |
11.7%
|
| 1 | Increased/improved | 597 |
31.1%
|
| 2 | Decreased | 41 |
2.1%
|
| 3 | No effect | 49 |
2.6%
|
| 4 | Not applicable | 1003 |
52.3%
|
| 9 | Missing value | 2 |
0.1%
|
| Sysmiss | 946 |