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Definition

Proportion of people with Type 2 diabetes.

Indicator Summary

Numerator
Number of persons aged 25 years and over with known diabetes (Type 2) or newly diagnosed diabetes as determined by a fasting plasma glucose test.
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Denominator
Population aged 25 years and over.
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Computation

Proxy measure:

The National Health Measures Survey component of the 2011–13 Australian Health Survey (cat. no. 4364.0.55.005) included a fasting plasma glucose test.

A respondent to the survey is considered to have known diabetes if they had ever been told by a doctor or nurse that they have Type 2 diabetes and:

  • They were taking diabetes medication (either insulin or …
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Disaggregation

2011–12—State and territory, by sex.

2011–12—Nationally, by:

  • remoteness (Australian Statistical Geography Standard (ASGS) Remoteness Structure).
  • 2011 Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Disadvantage (IRSD) quintiles.
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Calculation rules

Computation Rule
Description

Proxy measure:

The National Health Measures Survey component of the 2011–13 Australian Health Survey (cat. no. 4364.0.55.005) included a fasting plasma glucose test.

A respondent to the survey is considered to have known diabetes if they had ever been told by a doctor or nurse that they have Type 2 diabetes and:

  • They were taking diabetes medication (either insulin or tablets); or
  • Their blood test result for fasting plasma glucose was greater than or equal to 7.0 mmol/L).

A respondent to the survey is considered to have newly diagnosed diabetes if they reported no prior diagnosis of diabetes, but had a fasting plasma glucose value greater than or equal to 7.0 mmol/L.

Excludes persons who did not fast for 8 hours or more prior to their blood test.

Excludes women with gestational diabetes.

Population is limited to persons aged 25 years and over.

Rates are directly age-standardised to the 2001 Australian population.

Analysis by remoteness and Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-Economic Disadvantage (IRSD) is based on usual residence of person (subject to data availability).

Presented as a percentage.

95% confidence intervals and relative standard errors calculated for rates.

Note: The type of diabetes for newly diagnosed cases cannot be determined from a fasting plasma glucose test alone. However, it is assumed that the vast majority of newly diagnosed cases would be Type 2.

Numerators
Number of persons aged 25 years and over with known diabetes (Type 2) or newly diagnosed diabetes as determined by a fasting plasma glucose test.
Denominators
Population aged 25 years and over.
Disaggregation

2011–12—State and territory, by sex.

2011–12—Nationally, by:

  • remoteness (Australian Statistical Geography Standard (ASGS) Remoteness Structure).
  • 2011 Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Disadvantage (IRSD) quintiles.

References

Dunstan et al. 2002, The Australian Diabetes, Obesity and Lifestyle Study (AusDiab) – methods and response rates, Diabetes Research and Clinical Practice 57:119–129.


This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.

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