| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 4476 |
77.5%
|
| 1 | Mild | 1034 |
17.9%
|
| 2 | Moderate | 214 |
3.7%
|
| 3 | Severe | 38 |
0.7%
|
| 4 | Extreme or can't do | 13 |
0.2%
|