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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 > 24 years.
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Denominator
Total population aged 25 years and over for year in question.
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Computation

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 …

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Disaggregation

2007, 2008, 2009, 2010 — Nationally, by:

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

Computation Rule
Description

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 > 24 years.
Denominators
Total population aged 25 years and over for year in question.
Disaggregation

2007, 2008, 2009, 2010 — Nationally, by:

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

References

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