| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 6 |
0.3%
|
| 2 | Mild | 35 |
1.6%
|
| 3 | Moderate | 120 |
5.5%
|
| 4 | Severe | 576 |
26.6%
|
| 5 | Extreme | 1427 |
65.9%
|
| Sysmiss | 2253 |