| ahid | household identification number |
| apno | person number |
| ajspno | spell number of labour force status |
| ajhstat | labour force status code |
| ajhbgd | day labour force spell began |
| ajhbgm | month labour force spell began |
| ajhbgy | year labour force spell began |
| ajhsoc | occupation (soc): previous job |
| ajhpldf | change of workplace: previous job |
| ajhsic | industry (sic): previous job |
| ajhsize | no. employed at workplace: previous job |
| ajhmngr | managerial duties: previous job |
| ajhsemp | employee or self-employed: previous job |
| ajhboss | had employees: previous job |
| ajhsect | employing organisation: previous job |
| ajha9ly | whether job started after 1.9.90 |
| ajhpayl | pay at 1.9.90: previous job |
| ajhpylw | pay period (weeks) 1.9.90: previous job |
| ajhpylg | pay gross or net at 1.9.90: previous job |
| ajhpays | starting pay, post 1.9.90: previous job |
| ajhpysw | pay period (weeks):start of previous job |
| ajhpysg | pay gross or net: start of previous job |
| ajhstpy | reason for stopping previous job |
| ajblky | attraction of present job |
| ajhendd | day labour force spell ended |
| ajhendm | month labour force spell ended |
| ajhendy | year labour force spell ended |
| ajhseg | socio economic group: previous job |
| ajhgold | goldthorpe social class: previous job |
| ajhrgsc | rg social class: previous job |
| ajhisco | international soc: previous job |
| ajhcssm | cambridge scale males: previous job |
| ajhcssf | cambridge scale females: previous job |
| ajhhgs | hope – goldthorpe scale: previous job |
| ajhsec | socio-economic class: previous job |
| ajhspw | weeks in year to 1.9.91: prev job spell |
| ajhgpay | monthly gross pay: previous job |
| ajhnpay | monthly net pay: previous job |
| ajhgpayi | imputation flag – ajhgpay (derived) |
| ajhnpayi | imputation flag – ajhnpay (derived) |
| ajhbgy4 | year labour force spell began: 4 digit |
| ajhendy4 | year labour force spell ended: 4 digit |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| ajhiscon | international soc (num): previous job |
| ajhsoc_cc | occupation (soc): previous job – condensed classification |
| ajhiscon_cc | international soc (num): previous job – condensed classification |
| ajhisco_cc | international soc : previous job – condensed classification |