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QUALITY DECLARATION — SUMMARY
The NATSIHS was conducted from 1 July 2018 to 13 April 2019.
A summary of findings, including a broad set of tables in spreadsheet format was available on the ABS website on 11 December 2019.
For individuals who wish to undertake more detailed analysis of the NATSIHS data, detailed microdata was released via the DataLab on 11 December 2019. A TableBuilder product will be released, subject to the approval of the Australian Statistician.
The 2018–19 NATSIHS sample was designed to produce reliable estimates by remoteness areas, and at the national level and state/territory levels.
The sample for the non-community component was selected at random using a multi-stage area sample of addresses from the ABS's Address Register. The sample for the community component was selected from the ABS's Dwelling Register for Aboriginal and Torres Strait Islander Communities. After sample loss and non-response, the final sample achieved included approximately 6,400 private dwellings and 10,600 persons.
Estimates in this publication are subject to both sampling and non-sampling errors. Sampling error is the error associated with taking a sample of dwellings rather than going to all dwellings in Australia. In this publication the sampling error is measured by the relative standard error (RSE), which is the standard error expressed as a percentage of the estimate, and the margin of error (MoE), which describes the distance from the population value that the sample estimate is likely to be within for a given level of confidence. Non-sampling errors can occur in any data collection, whether based on a sample or a full count such as a census. Sources of non-sampling error include:
Every effort was made to reduce the non-sampling error by careful design and testing of questions, training interviewers, follow-up of respondents and extensive editing and quality control procedures at all stages of data processing.
Estimates, RSEs and MoEs in this publication have been assessed to ensure the confidentiality of individuals and dwellings contributing to the survey. Estimates in this publication have been randomly adjusted using the statistical process of perturbation to ensure confidentiality of respondents. In most cases, perturbation will have only a small impact on the estimate, while ensuring the information value of the published data as a whole is not impaired.
This is the fourth health survey of Aboriginal and Torres Strait Islander people conducted by the ABS. The previous surveys were conducted in 2012-13 (as part of the Australian Health Survey), 2004–05 and 2001.
Information about the comparability of each data item to the previous release in 2012–13, as well as to the 2017–18 National Health Survey, can be found in the Data Item List via the Downloads tab.
Estimates and associated RSEs and MoEs for proportions are available in Excel spreadsheets, which can be accessed from the Downloads tab.
Detailed microdata was released on the ABS website on 11 December 2019. It is expected that a TableBuilder will be produced from the NATSIHS, subject to the approval of the Australian Statistician. For further details, refer to the Microdata Entry Page on the ABS website.
Special tabulations of NATSIHS data are available on request for a fee. Tabulations can be produced from the survey subject to confidentiality and sampling variability constraints.
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