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Definition

Incidence of heart attacks.

Indicator Summary

Numerator
Number of deaths recorded with an underlying cause of acute coronary heart disease (a) plus the number of non-fatal hospitalisations with a principal diagnosis of acute myocardial infarction or unstable angina that do not end in a transfer to another acute hospital (b). For ages greater than 24 years.
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Denominator
Total population aged 25 years and over for year in question.
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Computation

Rates directly age-standardised to the 2001 Australian population.

Count (a) number of deaths where ‘acute coronary heart disease’ (ICD-10 codes I20–I24) is the underlying cause of death in each calendar year (based on year of registration of death).

Count (b) number of non-fatal hospitalisations where ‘acute myocardial infarction’ (ICD-10-AM I21) or ‘unstable angina’ (ICD-10-AM I20.0) are the principal diagnosis, and …

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Disaggregation

2007, 2008 (resupplied for updated Estimated Resident Population (ERP)), 2009, 2010 (resupplied for updated ERP and revisions to the National Mortality Database (NMD)), 2011 — Nationally, by:

  • age group and sex

2007, 2008 (resupplied for refinement of age-standardisation methodology), 2009, 2010 (resupplied for refinement of age-standardisation methodology and revisions to the NMD), 2011—Nationally, by:

  • Indigenous status (for states and territories with adequate identification in hospital and deaths data)
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Calculation rules

Computation Rule
Description

Rates directly age-standardised to the 2001 Australian population.

Count (a) number of deaths where ‘acute coronary heart disease’ (ICD-10 codes I20–I24) is the underlying cause of death in each calendar year (based on year of registration of death).

Count (b) number of non-fatal hospitalisations where ‘acute myocardial infarction’ (ICD-10-AM I21) or ‘unstable angina’ (ICD-10-AM I20.0) are the principal diagnosis, and separation mode is not equal to ‘died’ or ‘transferred to another acute hospital’, and care type is not equal to ‘new born-unqualified days only’ or ‘organ procurement – posthumous’ or ‘hospital boarder’ in each calendar year (based on discharge date from hospital).

The number of acute coronary events is estimated by (a) + (b).

Numerators
Number of deaths recorded with an underlying cause of acute coronary heart disease (a) plus the number of non-fatal hospitalisations with a principal diagnosis of acute myocardial infarction or unstable angina that do not end in a transfer to another acute hospital (b). For ages greater than 24 years.
Denominators
Total population aged 25 years and over for year in question.
Disaggregation

2007, 2008 (resupplied for updated Estimated Resident Population (ERP)), 2009, 2010 (resupplied for updated ERP and revisions to the National Mortality Database (NMD)), 2011 — Nationally, by:

  • age group and sex

2007, 2008 (resupplied for refinement of age-standardisation methodology), 2009, 2010 (resupplied for refinement of age-standardisation methodology and revisions to the NMD), 2011—Nationally, by:

  • Indigenous status (for states and territories with adequate identification in hospital and deaths data)

References

Related content

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