Index of Multiple Deprivation (IMD) - Contextual Note

Remarks, corrections and source footnotes from the original publishers of the various IMD datasets.

SIMD 2016

Error in the working age population In a previous version of this file we included incorrect working age population figures. This only affects the variable 'Working_age_population', now called 'Working_age_population_Revised'. SIMD16 ranks are not affected. For the calculation of the SIMD16 ranking, correct working age population figures were used.

SIMD 2020

The Scottish IMD 2020 was reissued by its publisher to correct a data error with the income data for a small number of areas. We have republished this amended (v2) version here.

WIMD 2005

Author: Social Justice Statistics

The indicators used for the income domain were: - Income Support claimants (and their children and partners), including pension credit - income-based Jobseeker's Allowance - Working Families' Tax Credit - Disabled Person's Tax Credit - National Asylum Support Service supported asylum seekers in receipt of subsistence only and accomondation support

The indicators used for the employment domain were: - claimants of unemployment related benefits - claimants of Incapacity Benefit - Severe Disablement Allowance (for women under 60 and men under 65) - participants on New Deal for Young People and Intensity Activity Period (for New Deal 25+)

Notes on the income and employment domains: 1 Number of deprived individuals. 2 Percentage of the at risk population, i.e. percentage of total population for income domain and percentage of working age population for employment domain. 3 The employment domain was revised on 22 November 2005 to include the claimant count indicator.

Indicators used (with notes) for the geographical access to services domain: 1 Access to food shop (percentage within 10 minutes) 2 Access to GP (percentage within 15 minutes) 3 Access to primary school (percentage within 15 minutes) 4 Access to secondary school (percentage within 30 minutes) 5 Access to NHS dentist (percentage within 20 minutes) 6 Access to post office (percentage within 15 minutes) 7 Access to public library (percentage within 15 minutes) 8 Access to leisure centre (percentage within 20 minutes)

Indicators used (with notes) for the education, skills, and training domain: 1 Key stage 2, average point score (2004) 2 Key stage 3, average point score (2004) 3 Key stage 4, average point score (2004) 4 Secondary school absence rates (2004) 5 Proportion of 17 and 18 year olds not entering full-time further or higher education (2004) 6 Proportion of adults with low or no qualifications (2001)

Notes on Overall domain ranks: 1 The employment domain was revised on 22 November 2005 to include the claimant count indicator and this affected the overall Index values. These figures replace those released on 30 September 2005. 2 The employment domain was revised on 22 November 2005 to include the claimant count indicator. These figures replace those released on 30 September 2005.

WIMD 2008

Welsh Index of Multiple Deprivation 2008 (revised 20/12/2011, 29/03/2011 and 13/07/2010) Author: SJ&E, Welsh Assembly Government

During production of the 2011 edition of WIMD, an error was discovered in the WIMD 2008 income domain. This was because the dependent children of claimants of income-related Department of Work and Pensions (DWP) benefits were erroneously omitted from the indicator in 2008. The 2008 income indicators were corrected and re-published on StatsWales in November 2011. Indicator values were on average over 20 per cent higher than the originally published value. Changes to the income domain and overall index ranks were made both to StatsWales and to the WIMD 2008 Summary Report on 20 December 2011. In July 2010, an error was discovered in the physical environment domain of WIMD 2008. As a result, the LSOA scores and ranks in the physical environment domain were revised on 13th July 2010. The change in LSOA ranking in the physical environment domain caused small changes to the overall WIMD scores and ranks, and these were also revised on the same date. In March 2011, an error was discovered in the community safety domain of WIMD 2008. As a result, the LSOA scores and ranks in the community safety domain were revised on 29th March 2011. The change in LSOA ranking in the community safety domain caused small changes to the overall WIMD scores and ranks, and these were also revised on the same date. In March 2011, an error was discovered in the community safety domain of WIMD 2008: Child Index. As a result, the LSOA scores and ranks in the community safety domain were revised on 29 March 2011 The change in LSOA ranking in the community safety domain caused small changes to the overall WIMD: Child Index scores and ranks, and the burglary indicator. These were revised on the same date. In July, 2010, an error was discovered in the physical environment domain of WIMD 2008: Child Index. As a result, the LSOA scores and ranks in the physical environment domain were revised on 13th July 2010. The change in LSOA ranking in the physical environment domain caused small changes to the overall WIMD: Child Index scores and ranks, and these were revised on the same date.

WIMD 2011

No notes.

WIMD 2014

(r) Data in these columns were revised on 12 August 2015 following provision of revised data by the Department for Work and Pensions (DWP).

WIMD 2019