| Value | Category | Cases | |
|---|---|---|---|
| 1 | Increased/improved | 401 |
3%
|
| 2 | Decreased | 498 |
3.7%
|
| 3 | No effect | 161 |
1.2%
|
| 4 | Not applicable | 10035 |
74.7%
|
| 8 | Don't know | 2315 |
17.2%
|
| 9 | Missing value | 21 |
0.2%
|
| Sysmiss | 3914 |