| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 5246 |
87.6%
|
| 1 | Mild | 626 |
10.5%
|
| 2 | Moderate | 95 |
1.6%
|
| 3 | Severe | 16 |
0.3%
|
| 4 | Extreme or can't do | 7 |
0.1%
|
| Sysmiss | 1171 |