| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3289 |
85.9%
|
| 1 | Yes, Mild | 220 |
5.7%
|
| 2 | Yes, Moderate | 163 |
4.3%
|
| 3 | Yes, Severe | 112 |
2.9%
|
| 99 | Refuse | 45 |
1.2%
|
| Sysmiss | 316 |