| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 553 |
43.4%
|
| 2 | Very mild | 160 |
12.6%
|
| 3 | Mild | 123 |
9.7%
|
| 4 | Moderstae | 231 |
18.1%
|
| 5 | Severe | 102 |
8%
|
| 6 | Very severe | 104 |
8.2%
|
| Sysmiss | 839 |