| chid | household identification number |
| cpno | person number |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| civiow2 | interview outcome wave 2 |
| civievr | ever interviewed |
| civelig | whether permanent sample member |
| chhmem | household membership |
| cnewhy | unlisted joiners |
| cnemnjn | new entrants – month joined hh |
| cneyrjn | new entrants – year joined hh |
| clvwhy | leavers |
| clvmn | leavers – month left |
| clvyr | leavers – year left |
| clvloc | leavers – new location |
| civfio | individual interview outcome |
| civrref | reason for interview refusal |
| cfinloc | final sample location identification |
| civtel | telephone interview |
| civfho | final household interview outcome |
| csampst | sample membership status |
| cmovest | individual mover status |
| clewght | longitudinal enumerated individual weigh |
| clrwght | longitudinal respondent weight |
| cneyrjn4 | new entrants – year joined hh: 4 digit |
| clvyr4 | leavers – year left: 4 digit |
| cdistmov | distance of residential move |