| Value | Category | Cases | |
|---|---|---|---|
| 1 | In office | 46 |
5.9%
|
| 2 | During next visit | 44 |
5.6%
|
| 3 | During check up visit | 23 |
2.9%
|
| 4 | Not corrected | 668 |
85.5%
|
| Sysmiss | 3741 |