The LFS is a data source compiled from a survey of the UK population. It uses internationally recognised definitions of employment, unemployment and economic activity. It also captures other personal characteristics of household members over the age of 16 such as occupation, education and training. The LFS reflects only a sample of the total population. All cases are therefore weighted on the basis of sub-national population totals by age and sex to give estimates for the entire UK household population.
Labour Force Survey (LFS) responses have been reweighted for periods from January to March 2020 using updated HM Revenue and Customs (HMRC) Real Time Information (RTI) data. The non-response bias adjustment, previously implemented for England, Wales and Scotland data, has now also been applied to Northern Ireland data. Our Impact of reweighting on Labour Force Survey key indicators: 2022 article gives more information on the reweighting exercise.