| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 864 |
86.1%
|
| 2 | Mild | 90 |
9%
|
| 3 | Moderate | 21 |
2.1%
|
| 4 | Severe | 14 |
1.4%
|
| 5 | Extreme | 15 |
1.5%
|
| Sysmiss | 2934 |