| Value |
Category |
| 1 |
Secured in health passport |
| 2 |
Given to participant (passport unavailable) |
| 3 |
Returned to data office |
| 4 |
Sent to CRH |
| 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.