| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 5094 |
85%
|
| 1 | Mild | 747 |
12.5%
|
| 2 | Moderate | 114 |
1.9%
|
| 3 | Severe | 31 |
0.5%
|
| 4 | Extreme or can't do | 4 |
0.1%
|
| Sysmiss | 1171 |