| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 37 |
3.7%
|
| 2 | Mild | 6 |
0.6%
|
| 3 | Moderate | 12 |
1.2%
|
| 4 | Severe | 161 |
16.1%
|
| 5 | Extreme | 787 |
78.5%
|
| Sysmiss | 2935 |