| Value | Category | Cases | |
|---|---|---|---|
| 1 | Scar present | 36 |
10.3%
|
| 2 | Scar Absent | 4 |
1.1%
|
| 3 | No information | 219 |
62.4%
|
| 5 | miss | 0 |
0%
|
| 9 | na | 92 |
26.2%
|
| Sysmiss | 2453 |