| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3529 |
92.2%
|
| 1 | Yes, Mild | 112 |
2.9%
|
| 2 | Yes, Moderate | 54 |
1.4%
|
| 3 | Yes, Severe | 53 |
1.4%
|
| 99 | Refuse | 81 |
2.1%
|
| Sysmiss | 316 |