Provenance & quality
All data were obtained from Nomis (https://www.nomisweb.co.uk/census/2011). The following tables were used: Male unemployment: KS602UK – Economic activity – Males, Overcrowded households: QS409EW – Persons per room – Households, No car ownership: QS416EW – Car or van availability, Low skill occupation: QS607EW – NS-SeC
We followed Paul Norman’s described methodology for 2001 data (https://census.ukdataservice.ac.uk/media/215841/Calculating_2001_deprivation.pdf) and Ben Wheeler’s methodology for calculating the index from 2011 census data at LSOA scale (http://reshare.ukdataservice.ac.uk/851497/). In short, the index uses four variables derived from census data: proportion of adult male unemployment (as a proportion of economically active males), proportion households that are overcrowded (more than one person per room), proportion of households with no car/van ownership, and proportion of residents living in households with a head of household in an unskilled or low skilled occupation (referred to as low social class). Each variable is z-scored (mean-centred and divided by standard deviation), and the z-scores are summed to give the index.