| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 23 |
1.1%
|
| 2 | Mild | 43 |
2%
|
| 3 | Moderate | 152 |
7%
|
| 4 | Severe | 585 |
27.1%
|
| 5 | Extreme | 1359 |
62.9%
|
| Sysmiss | 2255 |