| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
13.4%
|
| 1 | Improved | 62 |
41.6%
|
| 2 | Unchanged | 10 |
6.7%
|
| 3 | Deteriorated | 57 |
38.3%
|