| Value |
Category |
| 0 |
|
| 1 |
3 doses before 1 year and boster dose within 3 years |
| 2 |
1 to 3 doses bofore 1 year |
| 3 |
No |
| 4 |
|
| 5 |
|
| 6 |
|
| 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.