| lhid | Household identification number |
| lfid | Fieldwork household identifier |
| livnadd | Household found at new address in field |
| livia | Interviewer area |
| livid | Interviewer number |
| livlnc | Total calls at last known address |
| livtnc | Total calls at interview address |
| liviam | Area intrvw took place non-local movers |
| livfho | Final household interview outcome |
| livosmrh | No. OSMs – whole HH refusal to intervwr |
| livnsmrh | No. new HH membs – whl HH ref to intvwr |
| livrrefh | Reason for household refusal |
| livisst | Coversheet issue status |
| livconv | Refusal conversion attempted |
| livreis | Re-issued to field |
| lhhdc | Document check – h/hold quest’re comp? |
| lhhorig | Sample Origin: original BHPS or ECHP |
| lxhwght | Household Weight |
| lregion | Region / Metropolitan area |
| lhhmove | Mover household indicator |
| ahid | Household identification number – Wave 1 |
| lxhwtuk1 | Household weight -inc all samples |
| lxhwtuk2 | Household weight within UK estimates |
| lstrata | Stratification class |
| lpsu | Primary Sampling Unit |
| lregion2 | Government Office Region |