| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 4309 |
74.6%
|
| 1 | Mild | 1194 |
20.7%
|
| 2 | Moderate | 219 |
3.8%
|
| 3 | Severe | 49 |
0.8%
|
| 4 | Extreme or can't do | 4 |
0.1%
|