| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 1 |
0.1%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 44 |
2.8%
|
| 1 | MODERATELY | 166 |
10.6%
|
| 2 | SEVERELY | 218 |
13.9%
|
| 3 | NOT AT ALL | 1139 |
72.6%
|
| Sysmiss | 9 |