This document was added or updated on 14/08/2015.
FILE STRUCTURE
Information from the National Aboriginal and Torres Strait Islander Health Survey (NATSIHS) is stored electronically in the form of data items. In some cases items were formed directly from individual survey questions, while in others items were derived from answers to several questions (e.g. Body Mass Index derived from measured height and weight). Some items were derived with reference to information from other organisations such as the National Health and Medical Research Council (e.g. in relation to guidelines on consumption of alcohol).
The following table shows the levels available in each Australian Aboriginal and Torres Strait Islander Health Survey, Detailed Conditions and Other Health Data microdata product and examples of the information that could be contained on those levels. For information on the data items and related output categories available on the TableBuilder or Expanded CURF products, refer to the data item lists applicable to the specific product, which are available in Excel spreadsheet format from the Downloads page of this product.
 | TableBuilder | Expanded CURF | Information contained on level |
|
| 1. Household level | X | X | Geographic classifications, household size and structure |
| | | |
| 2. Persons in household level | X | X | Basic demographic and relationship details of all members of households |
| | | |
| 3. Person level | X | X | This is the main level, containing all demographic and socio-economic characteristics of survey respondents, and most of the health and related information they provided. |
| | | |
| 4. Alcohol day level | X | X | Alcohol consumption on the three most recent days on which respondents reported consuming alcohol, and the day order of consumption |
| | | |
| 5. Alcohol type level | X | X | Broad alcohol types and quantities for each type consumed on the three most recent days, and the day order of consumption |
| | | |
| 6. Conditions level | X | X | Selected health conditions reported by respondents |
| | | |
| 7. Most recent injury | X | X | Part(s) of body injured by type(s) of injury sustained during the most recent injury event reported by respondents |
| | | |
| 8. Biomedical level | — | X | Pathology test information for markers of chronic disease such as blood sugar levels, cholesterol and kidney function, markers of nutritional status, as well as markers of exposure to chemicals such as nicotine for respondents aged 18 years and over who participated in this component |
| | | |
| 9. Child 5-17 years physical activity level (NR Only) | X | X(a) | Physical and sedentary activities undertaken on the three days prior to interview for children aged 5-17 years living in non-remote areas, including specific information on time spent on active transport/moderate-vigorous/screen-based activities per day |
| | | |
| 10. Child 5-17 years physical activity detailed level (NR Only) | X | X(a) | Detailed information about the physical activities undertaken each day on the three days prior to interview for children aged 5-17 years living in non-remote areas, including time spent on active transport/moderate-vigorous by detailed type |
(a) Only available on State/Territory by ASGS Remoteness CURF.
Datasets from the Australian Aboriginal and Torres Strait Islander Health Survey are hierarchical in nature. A hierarchical data file is an efficient means of storing and retrieving information which describes one to many, or many to many, relationships (e.g. a person may report multiple days on which alcohol was consumed and also multiple types of alcoholic beverages on each of these days). For information of the structure on individual microdata products, see Using the TableBuilder and Using the Expanded CURF pages within this product.
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