| Value | Category |
|---|---|
| -4 | Missing data |
| -3 | Refused to answer |
| -2 | Not applicable |
| -1 | Don't know |
| 0 | Not disabled |
| 1 | Sight disability |
| 2 | Hearing disability |
| 3 | Communication/speech disability |
| 4 | Physical disability |
| 5 | Intellectual disability |
| 6 | Emotional disability |
| 7 | Multiple disabilities |