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Naming conventions for 2011 Census statistics

During planning for 2011 Census statistics, users requested a revised, user-friendly and accessible naming convention. To fulfil this request, ONS considered the conventions applied by international statistical offices, and carried out extensive discussion across Wales, Scotland and Northern Ireland.

The table below outlines describes the naming convention and the differences between the 2001 and 2011 Censuses. The table is also available to download (48.9 Kb Pdf) .

2011 name/abbreviation 2001 name/abbreviation Description
Key Statistics / KS No change Provide information derived from more than one variable on the census form, and allow comparison across different areas.  Available at output area level.
Quick Statistics / QS Univariate statistics / UV Contain statistics which refer to one variable and its response categories from a census question and are available for the output area and higher geographies.
Upper threshold statistics (will be available for the middle layer super output area level of geography and above)
Detailed Characteristics / DC Standard tables / S Minimum population threshold of 5,000 persons and 2,000 households. DCs contain two or more census variables, such as age and sex, but provide considerably more detail than their local equivalents, as the larger population means disclosure risk is lower.
Themes / T Standard and CAS theme tables / T, CAST Bring together a range of results on a single variable, such as ethnic group.
Lower threshold statistics (will be available for output areas and higher geographies)
Local Characteristics / LC Census area statistics / CAS Provide the most detailed results possible for output areas, and contain two or more variables.
Other statistics
Armed forces tables No change No change
Migration tables No change No change
Postcode estimates Postcode headcounts Present the number of males, the number of females and the number of occupied households per postcode.
Workplace tables Workplace tables Workplace tables may see a name change depending on whether Workday tables will also be produced, as it will be important to distinguish the two population bases.


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