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USING THE CURF
While CURFs provide a great deal of flexibility, limitations on analysis can be impacted by factors such as sample size, the data classifications used, and conditions of use for the file.
More information on the additional detail and data items on Basic CURF can be found at the Data Item section of this publication.
The 2015-16 SIH and HES CURF are released under the Census and Statistics Act 1905. The Act allows for the release of unit record data, provided this information is not likely to identify an individual person or organisation. As a result there are no names or addresses of survey respondents on the CURF. Other steps, including the following list of actions, have been taken to protect the confidentiality of respondents. The 2015-16 SIH and HES CURF contain unit records relating to most survey respondents.
Protective provisions include:
As a result of these protective measures, population estimates obtained from the CURF are slightly different to the other 2015–16 SIH and HES publications. Variation in key items and populations are addressed in the CURF sample reconciliation tabulations document available from the Downloads tab. These tables provide a guide to the difference between CURF and the unconfidentialised file, using indicators such as mean, median and population estimates.
Steps to confidentialise the datasets that are available on the CURFs are taken for three main purposes:
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