| Value | Category |
|---|---|
| Absent | |
| No plague | |
| No plaque | |
| No plaque present | |
| No plaque seen | |
| None | |
| None found | |
| None present | |
| None seen | |
| Not Seen | |
| Not done | |
| Not present | |
| Not seen | |
| Yes | |
| clear | |
| no plague | |
| no plaque | |
| no plaque seen | |
| none | |
| none seen | |
| not plaque seen | |
| not seen | |
| refused |
| var_concept.name |
|---|
| N/A |