| Value | Category |
|---|---|
| 1 | Husband/wife/partner |
| 2 | Son/daughter/step/adopted/foster |
| 3 | Parent/parent-in-law |
| 4 | Brother/sister/step/adopted/foster |
| 5 | Other relative |
| 6 | Other non-relative |
| 2147483622 | Not applicable |
| 2147483623 | Refusal |
| 2147483624 | Don't know |
| 2147483625 | No answer |
| 1000000001 | .D |
| Sysmiss |