| Value | Category | Cases | |
|---|---|---|---|
| 0 | Don't know | 241 |
12.6%
|
| 1 | Increased/improved | 416 |
21.7%
|
| 2 | Decreased | 61 |
3.2%
|
| 3 | No effect | 62 |
3.2%
|
| 4 | Not applicable | 1133 |
59.1%
|
| 9 | Missing value | 4 |
0.2%
|
| Sysmiss | 946 |