This dataset provides 2011 estimates that classify usual residents in United Kingdom by the state of their general health. The estimates are as at census day, 27 March 2011.

The health classification used related to the five tick boxes on the questionnaire. These were changed from the three classifications available in table UV20 in 2001 to improve harmonisation of census estimates with other sources of health data results.

This information is used to allocate health resource and service provision, and to develop and monitor policy on the delivery of health care, the reduction of health inequalities and the assessment of progress towards improving the general health of the population.

General health refers to health over the 12 months prior to census day (27 March 2011).

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the http://www.ons.gov.uk/ons/guide-method/census/2011/census-data/2011-census-prospectus/new-developments-for-2011-census-results/statistical-disclosure-control/index.html[Statistical Disclosure Control] page on the ONS web site.