| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 39 |
2%
|
| 2 | Mild | 233 |
11.9%
|
| 3 | Moderate | 557 |
28.5%
|
| 4 | Severe | 875 |
44.7%
|
| 5 | Extreme | 253 |
12.9%
|
| Sysmiss | 1981 |