| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 33 |
3%
|
| 2 | Mild | 28 |
2.5%
|
| 3 | Moderate | 171 |
15.4%
|
| 4 | Severe | 565 |
51%
|
| 5 | Extreme | 310 |
28%
|
| Sysmiss | 3310 |