| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 999 |
18.3%
|
| 2 | mild | 274 |
5%
|
| 3 | moderate | 86 |
1.6%
|
| 4 | severe | 22 |
0.4%
|
| 5 | extreme /cannot do | 1 |
0%
|
| 7 | 1 |
0%
|
|
| 9 | 4085 |
74.7%
|
|
| 97 | 1 |
0%
|
|
| Sysmiss | 1 |