| pid | Cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| ohid | household identification number |
| opno | person number |
| oiviolw | interview outcome prev wave |
| oivstat1 | interview status: previous waves |
| oivelig | whether permanent sample member |
| ohhmem | household membership |
| onewhy | new entrants – why living in hh |
| onemnjn | new entrants – month joined hh |
| oneyrjn4 | new entrants – year joined hh |
| olvwhy | leavers – why left |
| olvmn | leavers – month left |
| olvyr4 | leavers – year left |
| olvloc | leavers – new location |
| oivfio | individual interview outcome |
| oivrref | reason for interview refusal |
| oivireis | re-issued to field |
| ofinloc | final sample location identification |
| oivfho | final household interview outcome |
| omemorig | sample origin |
| osampst | Sample membership status |
| omovest | individual mover status |
| olewght | longitudinal enumerated individual weigh |
| olrwght | longitudinal respondent weight |
| olrwtsw1 | longit’l resp. weight inc scot-welsh |
| olewtsw1 | longit’l enum. weight inc. scot-welsh |
| olrwtsw2 | longit’l resp. weight only scot-welsh |
| olewtsw2 | longit’l enum. weight only scot-welsh |
| olrwtuk1 | longit’l resp. weight inc all samples |
| olewtuk1 | longit’l enum. weight inc all samples |
| olrwtuk2 | longit’l resp. weight within uk estimate |
| olewtuk2 | longit’l enum. weight within uk estimate |
| odistmov | distance of residential move |