| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3273 |
83.6%
|
| 2 | Mild | 277 |
7.1%
|
| 3 | Moderate | 217 |
5.5%
|
| 4 | Severe | 124 |
3.2%
|
| 5 | Extreme | 24 |
0.6%
|
| Sysmiss | 23 |