| Value |
Category |
| 1 |
Scar present |
| 2 |
Scar absent |
| 3 |
Unable to examine |
| 97 |
Missing |
| 99 |
Don't know |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
