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JOINT UN-ECE/EUROSTAT MEETING ON POPULATION AND HOUSING CENSUSES GENEVA, 28-30 MAY 2009

JOINT UN-ECE/EUROSTAT MEETING ON POPULATION AND HOUSING CENSUSES GENEVA, 28-30 MAY 2009 DETERMINING USER NEEDS FOR THE 2011 UK CENSUS IAN WHITE , Office for National Statistics, UNITED KNGDOM. FACTORS SHAPING THE 2011 UK CENSUS . Evaluations of the 2001 Census and the lessons learned

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JOINT UN-ECE/EUROSTAT MEETING ON POPULATION AND HOUSING CENSUSES GENEVA, 28-30 MAY 2009

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  1. JOINT UN-ECE/EUROSTAT MEETING ON POPULATION AND HOUSING CENSUSES GENEVA, 28-30 MAY 2009 DETERMINING USER NEEDS FOR THE 2011 UK CENSUS IAN WHITE, Office for National Statistics, UNITED KNGDOM

  2. FACTORS SHAPING THE 2011 UK CENSUS • Evaluations of the 2001 Census and the lessons learned • Requirements of users of census statistics • International obligations arising from EU census regulations • Advice and guidance of other international census agencies • Changing society • Equality and diversity legislation

  3. SCOPE OF USER CONSULTATION • Enumeration methodology • Local authority partnerships • Census topics and questions • Definitions • Classifications • Sampling • Planned tabulations • Geographic boundaries • Processing • Edit and imputation • Confidentiality and disclosure control • Coverage and data quality • Dissemination of outputs

  4. KEY USER COMMUNITIES IN THE UK • Central government • Local government • Health service providers • Public utility services • Academics and schools • Market researchers • Commercial and retail sector • The Third Sector • General public • Parliament

  5. CONSULTATION FORUMS • Parliamentary Committees • Census Advisory Groups • Local Authority networks • Retail networks • User community groups • Bilateral meetings • Public consultation events • Conferences • Information Papers • Website

  6. KEY THEMES FOR CONSULTATION • Enumeration methodology • Local authority partnerships • Census topics and questions • Definitions • Classifications • Sampling • Planned tabulations • Geographic boundaries • Processing • Edit and imputation • Confidentiality and disclosure control • Coverage and data quality • Dissemination of outputs

  7. 2011 UK CENSUS QUESTIONS • Clear and demonstrated need • National importance • No other comparable source • Requirement for multivariate analysis • Comparability with 2001 • Public acceptability and burden • No adverse impact on response • Reliable and accurate data • Cost of processing • Required only for statistical purposes • Required by EU

  8. 2011 CENSUS QUESTIONS:What users wanted All the 2001 Census questions plus • Civil partnership status • National identity • Citizenship • Year of entry into UK • Intended length of stay in UK • Language • Second residence • Type of central heating • Number of bedrooms • Income • Sexual identity • Type of disability

  9. OUTPUT GEOGRAPHY 2001 Census geography Field: 126,000 Enumeration Districts (200-350 households) Outputs: 223,000 Output Areas (OAs) (target size 125 households) (minimum size 40 households) Super Output Areas (SOAs) (Lower) 2,000-3,000 households (Middle) 5,000-10,000 households (= LAU 2, NUTS 5)

  10. OUTPUT GEOGRAPHY 2011 Census geography – minimum change > 5 per cent of OAs (merges and splits) > 0.5 per cent of Middle Level SOAs

  11. OUTPUT GEOGRAPHY 2001 Census geography Field: 126,000 Enumeration Districts (200-350 households) Outputs: 223,000 Output Areas (OAs) (target size 125 households) (minimum size 40 households) Super Output Areas (SOAs) (Lower) 2,000-3,000 households (Middle) 5,000-10,000 households (= LAU 2, NUTS 5) Administrative areas (NUTS 1-5), plus parishes, urban areas, National Parks, Parliamentary constituencies ….

  12. STATISTICAL DISCLOSURE CONTROL • 2011 Census methods under review • Record swapping (pre-tabular) • Over-imputation (pre-tabular) • Cell perturbation (post-tabular) • Evaluation criteria include • Level of protection • Impact on data utility • Feasibility of implementation • Outputs • Origin/destination flows • Microdata • Special areas and institutions Consulting withusers on final choiceOctober 2009

  13. OUTPUT DISSEMINATION 2011 output programme • Lessons learned from 2001 Census • Methodological and technological innovation • EU Requirements • New questions – new derived variables • Supporting metadata • Outputs for post-census area boundaries • Commissioned tables subject to statistical disclosure controls • Funding • Unrestricted re-use and publication

  14. OUTPUT DISSEMINATION User consultation will include: • Flexibility of outputs via web-based hypercubes • Content of hypercubes • Population bases • Exact-fit geographies • Metadata • Microdata samples “2011 Census output will be the most complex and comprehensive set of population ever data produced”2011 Census Output Strategy Review

  15. Summary 2011 Census consultation covers • Topic content and questionnaire design • Strong working partnerships with local authorities • New delivery and collection methods including online completion • Flexible geographies • Output products and delivery • Statistical disclosure control methodology • Outsourcing and address checking • Identifying difficult areas • Coverage assessment and adjustment

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