| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 5144 |
85.9%
|
| 1 | Mild | 715 |
11.9%
|
| 2 | Moderate | 115 |
1.9%
|
| 3 | Severe | 10 |
0.2%
|
| 4 | Extreme or can't do | 6 |
0.1%
|
| Sysmiss | 1171 |