| Value | Category | 
|---|---|
| -9 | Don't know | 
| 1 | Too young | 
| 2 | Didn't know name had to be immunized | 
| 3 | Health care center is too far | 
| 4 | Shortage of supply | 
| 5 | other | 
| 6 | Not available | 
| 7 | Don’t know/not sure | 
| 8 | No reason | 
| 9 | Does not like injection | 
| 10 | Not stable | 
| 11 | Against belief | 
| Sysmiss |