| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 25 |
1.2%
|
| 2 | Mild | 155 |
7.2%
|
| 3 | Moderate | 594 |
27.4%
|
| 4 | Severe | 1121 |
51.8%
|
| 5 | Extreme | 271 |
12.5%
|
| Sysmiss | 2251 |