| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mild | 16 |
4%
|
| 2 | Moderate | 143 |
35.7%
|
| 3 | Severe | 234 |
58.4%
|
| 4 | I don't know | 8 |
2%
|
| Sysmiss | 54 |