1 / 33

Samples of Anonymised Records: a resource for ethnicity research

Samples of Anonymised Records: a resource for ethnicity research. Ed Fieldhouse Director, SARs Support team http://www.ccsr.ac.uk/sars. Key features of the SARs. Coverage Full range of census variables Size Ethnicity and religion Geography Multivariate/flexibility Household structure

phyllisadams
Download Presentation

Samples of Anonymised Records: a resource for ethnicity research

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Samples of Anonymised Records: a resource for ethnicity research Ed Fieldhouse Director, SARs Support team http://www.ccsr.ac.uk/sars

  2. Key features of the SARs • Coverage • Full range of census variables • Size • Ethnicity and religion • Geography • Multivariate/flexibility • Household structure • Comparability with other census products • Easy access

  3. 1991 Census microdata

  4. The SARs family 2001

  5. Individual SAR • 3% sample of individuals from UK • 1.84 million records • All census variables present • Lowest geography – GOR • Access • End User Licence (via Athens for academics • Do not attempt to identify anyone • Do not pass on data to unregistered individual

  6. Controlled Access Individual SAR • 3% sample of individuals from UK • 1.84 million records • All census variables present with very great detail • Lowest geography – LA • Access • Only within 4 ONS offices • Rigorous application procedure by ONS • Careful vetting of outputs by ONS

  7. Household SAR • 1% sample of households, E & W only • 225K Households; 525K individuals • All census variables present • No geography • Individuals linked within household • Access • Special Licence - administered by UKDA • More restrictive than EUL, eg cannot use on laptop • Applications need approval by ONS

  8. Controlled Access Household SAR • Same sample as SL-Household SAR, but also contains Scotland and NI • All census variables present with very great detail • Lowest geography – LA • Access • Only within 4 ONS offices • Rigorous application procedure by ONS • Careful vetting of outputs by ONS

  9. Small Area Microdata (SAM) • 5% sample of Individuals from UK • 2.96 million records • Most census variables present – restricted detail • Lowest geography – LA • Access • End User Licence (via Athens for academics) • Do not attempt to identify anyone • Do not pass on data to unregistered individual

  10. The 1991 Census ethnic group question asked in England, Wales and Scotland

  11. The 2001 Census ethnic group question asked in England and Wales

  12. The 2001 Census ethnic group question asked in Scotland

  13. The 2001 Census ethnic group question asked in Northern Ireland

  14. 2007 Test – England and Wales

  15. 1991 2% Individual SAR

  16. Ethnic Group for England and Wales – 2001 3% Individual Licensed SAR

  17. SAM: Sample size by ethnicity (England and Wales)

  18. SAM: Northern Ireland

  19. SAM in Scotland

  20. Comparison of ethnic group categories in 1991-2001 Census From Simpson and Akinwale, 2006

  21. Ethnic group imputation in 2001

  22. Comparing with the 100% data: England

  23. Comparing with the 100% data: Scotland

  24. Key research areas on ethincity using SARs • Ethnic differences in unemployment • Ethnic differences in educational attainment and participation • Ethnic differences in class attainment • Ethnic composition of families • Ethnic differences in health

  25. Research findings: 1991 SARs: Unemployment • In contrast to the small sample size of survey data which forces many researchers to over-collapse the categories and call all minority ethnic groups 'black', the SARs allows for detailed analysis of ethnic groups. • Differences both between and within major ethnic groups can be explored in various aspects of their socio-economic lives while at the same time controlling for other important characteristics. • Blackburn, Dale and Jarman (1997) showed striking differences between ethnic groups in the vulnerability to unemployment, even among people with the same level of educational qualifications. One in five (20 per cent) of UK-born Black-African men and women with higher qualifications were unemployed, but the rate for similarly qualified UK-born Whites was only one fifth as many (3 to 4 per cent). This is a case of what might be called 'ethnic penalty' • See also Fieldhouse and Gould, 1998 on how ethnic penalties are affected by local labour market conditions using sub-regional geography in SAR • Similar work by Simpson et al (for DWP) and Heath et al using 2001 SARs

  26. Mixed couples – SL-HSAR

  27. ...and UK born

  28. Impact of age, sex, qualifications and country of birth on economic activity (source DWP Research Report 333)

  29. Impact of age, sex, qualifications and country of birth on economic activity (source DWP Research Report 333

  30. ‘Ethnic penalties’ on women's economic activity (source DWP Research Report 333

  31. ‘Ethnic penalties’ on men’s unemployment (source DWP Research Report 333

  32. Accessing the files • EUL files available online following standard registration with the Census Registration System • Licensed Individual file 2001 • Small Area Microdata file 2001 • 1991 1% household and 2% individual SARs • Special licence Household SAR (via UKDA) • CAMS – controlled access allowed via ONS at specified sites

More Related