| Value | Category | Cases | |
|---|---|---|---|
| 1 | Scar present | 65 |
9.1%
|
| 2 | Scar Absent | 6 |
0.8%
|
| 3 | No information | 321 |
44.8%
|
| 5 | miss | 0 |
0%
|
| 9 | na | 325 |
45.3%
|
| Sysmiss | 1688 |