| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 178 |
64%
|
| 1 | Left | 9 |
3.2%
|
| 2 | Right | 17 |
6.1%
|
| 3 | Bilateral | 74 |
26.6%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 12 | |
| Sysmiss | 2394 |