| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 0 |
0%
|
| 1 | Left | 1 |
50%
|
| 2 | Right | 1 |
50%
|
| 3 | Bilateral | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 107 |