| Value |
Category |
| 100 |
No |
| 110 |
Never had certificate |
| 120 |
Had certificate |
| 121 |
Vaccination dates recorded |
| 122 |
Vaccination dates not recorded |
| 200 |
Yes |
| 210 |
Yes, seen |
| 211 |
Vaccination dates recorded |
| 212 |
Vaccination dates not recorded |
| 213 |
Short certificate |
| 214 |
Long certificate |
| 215 |
Both long and short certificate |
| 220 |
Yes, not seen |
| 997 |
Don't know |
| 998 |
Missing |
| 999 |
NIU (not in universe) |
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.