| bhid | Household identification number |
| bfid | Fieldwork household identifier |
| bivnadd | Household found at new address in field |
| bivia | Interviewer area |
| bivid | Interviewer number |
| bivlnc | Total calls at last known address |
| bivtnc | Total calls at interview address |
| biviam | Area interview took place-nonlocal movers |
| bivfho | Final household interview outcome |
| bivosmrh | No. OSMs – whole HH refusal to intervwr |
| bivnsmrh | No. new HH membs – whl HH ref to intvwr |
| bhhdc | Document check – h/hold quest’re comp? |
| bivips | Inter-penetrating sample indicator |
| bxhwght | Household Weight |
| bregion | Region / Metropolitan area |
| bhhmove | Mover household indicator |
| ahid | Household identification number – Wave 1 |
| bstrata | Stratification class |
| bpsu | Primary Sampling Unit |
| bregion2 | Government Office Region |