This dataset provides 2011 Census estimates that classify the out of term population in England and Wales by general health. The estimates are as at census day, 27 March 2011.
The out of term population is a redistribution of the usually resident population to their place of residence in out of term periods. Students who reported a second address that was a student's home address are counted at that second address. Students that did not provide an out of term address and usual residents who are not students are counted at their usual residence.

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 Statistical Disclosure Control page on the ONS web site.