| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 834 |
83.4%
|
| 2 | Mild | 74 |
7.4%
|
| 3 | Moderate | 41 |
4.1%
|
| 4 | Severe | 41 |
4.1%
|
| 5 | Extreme | 10 |
1%
|
| Sysmiss | 2938 |