Notes on the data: Aboriginal and Torres Strait Islander people, age distribution

Aboriginal male/female/total estimated resident population by sex and 5-year age group: 0-4 years to 65+ years; or broad age group: 0-14, 15-24, 25-44, 45-64, 65+ years, 2020 (Remoteness Areas: broad age groups only)

 

Policy context: In the 2016 Census of Population and Housing, 649,171 people (or 2.8% of the total Australian population) identified as being of Aboriginal and/or Torres Strait Islander origin [1]. Of this figure, 91% identify as Aboriginal, 5% were Torres Strait Islander and 4.1% reported being of both Aboriginal and Torres Strait Islander origin [2]: this population is referred to collectively here as ‘Aboriginal’ people. This represents an increase of 42.7% since the 2006 Census [3]; and reflects natural population increase (the excess of births over deaths) and other factors, including improvements in data collection methods especially in rural and remote areas and people newly identifying as Indigenous in the Census.

The Aboriginal and Torres Strait Islander population is considerably younger than the non-Indigenous population. In 2016, the median age for this population was 23 years, 15 years less than the national median age of 38 years [2]. More than one in three (34.0%) Aboriginal and Torres Strait Islander people were aged less than 15 years, while just 4.8% were aged 65 years and over (and although very low, this is higher than in 2011, when the proportion was 3.8%). The Aboriginal and Torres Strait Islander population is disadvantaged across all domains of wellbeing compared to their non-Indigenous counterparts [4].

References

  1. Australian Bureau of Statistics, 2016 Census community profiles, Canberra: ABS; 2017, accessed 8 August 2017. Available from: www.censusdata.abs.gov.au/census_services/getproduct/census/2016/communityprofile/
  2. indigenous.gov.au, ABS: 2016 Census shows growing Aboriginal and Torres Strait Islander population; 2017, accessed 8 August 2017. Available from: www.indigenous.gov.au/news-and-media/announcements/abs-2016-census-shows-growing-aboriginal-and-torres-strait-islander
  3. Australian Bureau of Statistics, Media fact sheet: Census shows increase in Aboriginal and Torres Strait Islander population, Canberra: ABS; 2007, accessed 8 August 2017. Available from: www.abs.gov.au/ausstats/
  4. Australian Institute of Health and Welfare (AIHW). The health and welfare of Australia's Aboriginal and Torres Strait Islander peoples: an overview, 2011. (AIHW Cat. no. IHW 42). Canberra: AIHW; 2011.
 

Notes: There is a substantial difference between the Census counts of Aboriginal and Torres Strait Islander Australians and the estimated resident population (ERP), adjusted for net undercount as measured by the Post Enumeration Survey undertaken by the ABS (the (Aboriginal) ERP is 17.5% higher for Australia than the Census count). Given this difference, and as the ABS has not released Aboriginal ERP by age at the SA2, LGA, or Remoteness Area level used in the Social Health Atlases, PHIDU has produced an estimated resident population by age and sex at 2016. This is of particular importance for the calculation of rates of hospitalisation, mortality etc.

 

Method of calculation: The ERP for June 2016 for Aboriginal populations is available from the ABS for Statistical Areas Level 2 (SA2, total population only): PHIDU concorded the SA2 populations to produce a 2016 ERP for each IARE (total population only). The ERP for 2016 is available by Indigenous Region (IREG), by 5-year age group. To produce estimated resident populations by age group for each IARE, PHIDU applied the proportional age distribution from the Census counts (usual resident population) in each IARE to the ERP total for the IARE. The 2016 estimated counts were then used as a base to project estimates for 2020 using the ABS projected population, Aboriginal and Torres Strait Islander Australians, Indigenous Regions, 2011-2026.

 

Geography: Data available by Population Health Area, Local Government Area, Primary Health Network and Remoteness Areas

 

Numerator: Aboriginal male, female and total estimated resident population by 5-year age group: 0-4 years to 65+ years or broad age group: 0-14, 15-24, 25-44, 45-64, 65+ (Remoteness Areas only)

 

Denominator: Total Aboriginal males, females or persons, estimated resident population

 

Detail of analysis: The age group as a percentage of the total Aboriginal population for males/ females/ persons

 

Source: Modelled by PHIDU based on SA2, IARE and IREG 2016 ERP and the ABS Census of Population and Housing, August 2016

 

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