| Value | Category |
|---|---|
| -7 | Legal skip |
| -6 | Unfinished questionnaire |
| -3 | Interviewer error |
| 1 | head |
| 2 | spouse/partner |
| 3 | son/daughter |
| 4 | son/daughter-in-law |
| 5 | father/mother |
| 6 | father/mother-in-law |
| 7 | sister/brother |
| 8 | grandchild |
| 9 | grandparent |
| 10 | niece/nephew |
| 11 | other relative |
| 12 | not related |