| Value | Category | Cases | |
|---|---|---|---|
| 0 | Don't know | 250 |
13%
|
| 1 | Increased/improved | 134 |
7%
|
| 2 | Decreased | 101 |
5.3%
|
| 3 | No effect | 27 |
1.4%
|
| 4 | Not applicable | 1398 |
72.9%
|
| 9 | Missing value | 7 |
0.4%
|
| Sysmiss | 946 |