| Value | Category | Cases | |
|---|---|---|---|
| 0 | Don't know | 216 |
11.3%
|
| 1 | Increased/improved | 792 |
41.3%
|
| 2 | Decreased | 33 |
1.7%
|
| 3 | No effect | 56 |
2.9%
|
| 4 | Not applicable | 818 |
42.7%
|
| 9 | Missing value | 2 |
0.1%
|
| Sysmiss | 946 |