| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 0 |
0%
|
| 1 | Left | 115 |
25.4%
|
| 2 | Right | 140 |
31%
|
| 3 | Bilateral | 197 |
43.6%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 14 | |
| Sysmiss | 2218 |