| Value | Category |
|---|---|
| 1 | Current spouse/partner |
| 2 | Children |
| 3 | Siblings |
| 4 | Parents |
| 5 | In-laws |
| 6 | Aunt/uncle/nephew/niece |
| 7 | Cousins |
| 8 | Other relative |
| 11 | Non-relative |
| a | Don't know |
| b | Refused to answer |
| c | Outlier set to missing |
| d | Dropped during anonymization (available on request) |
| e | Skipped in error |
| z | Not applicable |