| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mild | 497 |
13%
|
| 2 | Moderate | 1751 |
45.7%
|
| 3 | Severe | 1522 |
39.7%
|
| 98 | Don't know | 51 |
1.3%
|
| 99 | Refused | 8 |
0.2%
|
| Sysmiss | 316 |