| nhid | Household identification number |
| npno | Person number |
| nhgr2r | Relationship to reference person |
| nhgsex | Sex – HH grid |
| nhgbm | Month of birth – HH grid |
| nhgby | Year of birth – HH grid |
| nmastat | Marital status |
| nhgspn | PNO of spouse/partner |
| nhgemp | Employment status – HH Grid |
| nhgfno | PNO of father |
| nhgmno | PNO of mother |
| nhgra | Responsible adult |
| pid | Cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| niviolw | Interview outcome prev wave |
| nivstat1 | Interview status: previous waves |
| nhhmem | Household membership |
| nnewhy | New entrants – why living in HH |
| nnemnjn | New entrants – month joined HH |
| nneyrjn4 | New entrants – year joined HH |
| nivfio | Individual interview outcome |
| nivfho | Final household interview outcome |
| niodc | Individual document check |
| nmemorig | Sample Origin |
| nage | Age at Date of Interview |
| nage12 | Age at 1.12.2004 |
| nbutype | Benefit Unit Type |
| nbuno | Benefit Unit Number |
| nnchild | Number of own children in household |
| ndepchl | Whether dependent child: DSS definition |
| nhoh | Conventional Head of Household Indicator |
| nrach16 | Whether responsible adult for child |
| nagei | Imputation flag – NAGE and NAGE12 |
| nlrwght | Longitudinal respondent weight |
| nlewght | Longitudinal enumerated individual weight |
| nxrwght | X-sectional respondent weight |
| nxewght | X-sectional enumerated individual weight |
| nmovest | Individual mover status |
| nsampst | Sample membership status |
| nxrwtuk1 | X-sect’l resp. weight inc all samples |
| nxewtuk1 | X-sect’l enum. weight inc all samples |
| nxrwtuk2 | X-sect’l resp. weight within UK estimates |
| nxewtuk2 | X-sect’l enum. weight within UK estimates |
| nlrwtsw1 | Longit’l resp. weight inc Scot-Welsh |
| nlewtsw1 | Longit’l enum. weight inc. Scot-Welsh |
| nlrwtsw2 | Longit’l resp. weight only Scot-Welsh |
| nlewtsw2 | Longit’l enum. weight only Scot-Welsh |
| nlrwtuk1 | Longit’l resp. weight inc all samples |
| nlewtuk1 | Longit’l enum. weight inc all samples |
| nlrwtuk2 | Longit’l resp. weight within UK estimates |
| nlewtuk2 | Longit’l enum. weight within UK estimates |
| nsppid | Cross-wave person identifier of spouse |
| nfpid | Cross-wave person identifier of father |
| nmpid | Cross-wave person identifier of mother |
| nrapid | X-wave person identifier of resp. adult |
| ndistmov | Distance of residential move |
| nbuid | BU identifier |
| necstat1 | Econ.Status BU (HBAI defn), i |
| necstat2 | Econ.Status BU (HBAI defn), ii |
| nfamtype1 | BU type (HBAI defn) |
| nfamtype2 | Family type – new HBAI definition |
| nbutype_mod | benefit unit type |