| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 905 |
90.1%
|
| 2 | Mild | 61 |
6.1%
|
| 3 | Moderate | 21 |
2.1%
|
| 4 | Severe | 10 |
1%
|
| 5 | Extreme | 7 |
0.7%
|
| Sysmiss | 2934 |