| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 4566 |
79.1%
|
| 1 | Mild | 997 |
17.3%
|
| 2 | Moderate | 187 |
3.2%
|
| 3 | Severe | 17 |
0.3%
|
| 4 | Extreme or can't do | 8 |
0.1%
|