| nhid | household identification number |
| npno | person number |
| njspno | spell number of labour force status |
| njhstat | labour force status code |
| njhbgd | day labour force spell began |
| njhbgm | month labour force spell began |
| njhbgy4 | year labour force spell began |
| njhsoc | occupation (soc): previous job |
| njhsoc00 | occupation (soc2000): previous job |
| njhsemp | employee or self-employed: previous job |
| njhboss | had employees: previous job |
| njhsect | employing organisation: previous job |
| njhmngr | managerial duties: previous job |
| njhpldf | change of workplace: previous job |
| njhsic92 | industry (sic92): previous job |
| njhsize | no. employed at workplace: previous job |
| njhpayl | pay at 1.9.2003: previous job |
| njhpylw | pay period (weeks) 1.9.2003 prev. job |
| njhpylg | pay gross or net at 1.9.2003 prev. job |
| njhstpy | reason for stopping previous job |
| njblky | attraction of present job |
| njhendd | day labour force spell ended |
| njhendm | month labour force spell ended |
| njhendy4 | year labour force spell ended |
| njha9ly | whether job started after 1.9.2003 |
| njhseg | socio economic group: previous job |
| njhgold | goldthorpe social class: previous job |
| njhrgsc | rg social class: previous job |
| njhisco | international soc : previous job |
| njhcssm | cambridge scale males : previous job |
| njhcssf | cambridge scale females : previous job |
| njhhgs | hope – goldthorpe scale : previous job |
| njhsec | socio-economic class: previous job |
| njhspw | weeks in year to 1.9.2003: prev job spel |
| njhgpay | monthly gross pay: previous job |
| njhnpay | monthly net pay: previous job |
| njhgpayi | imputation flag – njhgpay (derived) |
| njhnpayi | imputation flag – njhnpay (derived) |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| njhiscon | international soc (num): previous job |
| njhsoc_cc | occupation (soc): previous job – condensed classification |
| njhsoc00_cc | occupation (soc2000): previous job – condensed classification |
| njhiscon_cc | international soc (num): previous job – condensed classification |
| njhisco_cc | international soc : previous job – condensed classification |