| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 971 |
91.3%
|
| 2 | Mild | 54 |
5.1%
|
| 3 | Moderate | 22 |
2.1%
|
| 4 | Severe | 14 |
1.3%
|
| 5 | Extreme | 3 |
0.3%
|
| Sysmiss | 3353 |