| ohid | Household identification number |
| ofid | Fieldwork household identifier |
| oivnadd | Household found at new address in field |
| oivia | Interviewer area |
| oiviam | Area intrvw took place non-local movers |
| oivid | Interviewer number |
| oivlnc | Total calls at last known address |
| oivtnc | Total calls at interview address |
| oivfho | Final household interview outcome |
| oivosmrh | No. OSMs – whole HH refusal to intervwr |
| oivnsmrh | No. new HH membs – whl HH ref to intvwr |
| oivrrefh | Reason for household refusal |
| oivconv | Refusal conversion attempted |
| oivreis | Re-issued to field |
| oivisst | Coversheet issue status |
| ohhdc | Document check – h/hold quest’re comp? |
| ohhorig | Sample Origin |
| oxhwght | Household Weight |
| oregion | Region / Metropolitan area |
| ohhmove | Mover household indicator |
| ahid | Household identification number – Wave 1 |
| oxhwtuk1 | Household weight -inc all samples |
| oxhwtuk2 | Household weight within UK estimates |
| ostrata | Stratification class |
| opsu | Primary Sampling Unit |
| oregion2 | Government Office Region |