| Value | Category | Cases | |
|---|---|---|---|
| 1 | Normal | 100 |
11.3%
|
| 2 | Slight impairment | 17 |
1.9%
|
| 3 | Moderate impairment | 3 |
0.3%
|
| 4 | Marked impairment | 2 |
0.2%
|
| 5 | No useful function | 2 |
0.2%
|
| 8 | Unknown | 760 |
86%
|
| Sysmiss | 697 |