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Indigenous Better Cardiac Care measure: 2.1-Cardiac-related diagnostic tests, 2016

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termIndicator
Short name:Help on this term2.1-Cardiac-related diagnostic tests, 2016
METeOR identifier:Help on this term657011
Registration status:Help on this termHealth, Standard 17/08/2017
Description:Help on this term

Number and percentage of Aboriginal and Torres Strait Islander people who claimed 1 or more relevant cardiac-related Medicare Benefits Schedule (MBS) diagnostic items within a 12-month period, compared with non-Indigenous Australians.

Rationale:Help on this term

This measure falls within Priority area 2 of the Better Cardiac Care project—timely diagnosis of heart disease and heart failure. This priority area is based on the premise that all Aboriginal and Torres Strait Islander people suspected of having heart disease or heart failure should receive the appropriate initial diagnostic service (for example, stress testing or coronary angiography for ischaemic heart disease, echocardiography for heart failure and rheumatic heart disease, or other investigations as clinically indicated), as close to the patient’s home as possible, and within acceptable timeframes according to the level of risk and the patient’s condition.

Indicator set:Help on this termBetter Cardiac Care measures for Aboriginal and Torres Strait Islander people (2016) Health, Standard 17/08/2017

Collection and usage attributes

Computation description:Help on this term

Number of people who had claimed 1 or more relevant cardiac-related MBS diagnostic items within a 12-month period.

Data are presented as a number and percentage.

Crude rates are calculated for Indigenous Australians.

Age-standardised rates are calculated for comparisons between Indigenous and non-Indigenous Australians, and for analysis of change over time.

Data are based on financial years.

Definitions:

Relevant cardiac-related MBS diagnostic item—consists of the following cardiac-related MBS diagnostic items for 2014–15: ECG monitoring (MBS item 11712); echocardiography (items 55113, 55114, 55116 to 55119, 55120, 55122, 55123, 55125); and cardiac catheterisation (items 38215–38246; 38300–38318; 38200, 38203, 38206).

Computation:Help on this term

Number: Numerator

Crude rate: (Numerator ÷ Denominator) x 100

Age-standardised rate: calculated using the direct method, and the Australian standard population as at 30 June 2001.

Numerator:Help on this term

Number of people who claimed 1 or more relevant cardiac-related MBS diagnostic items within the financial year.

Numerator data elements:Help on this term
Data Element / Data SetService event—Medicare Benefits Schedule (MBS) item identifier, NN[NNN]
Data Source
Medicare (MBS) data
Guide for use

Data source type: Administrative by-product data.


Data Element / Data SetPerson—Medicare personal identifier number, N[N(8)]
Data Source
Medicare (MBS) data
Guide for use

Used to uniquely identify and count individuals who have accessed a Medicare claimable service event.

Data source type: Administrative by-product data.


Data Element / Data SetService event—Medicare Benefits Schedule (MBS) processing date, DDMMYYYY
Data Source
Medicare (MBS) data
Guide for use

Used to identify claims processed in the financial year.

Data source type: Administrative by-product data


Denominator:Help on this term

Estimated population at the middle of the financial year, calculated as the average of the population estimates/projections at 30 June at the beginning and end of the financial year.

Denominator data elements:Help on this term
Data Element / Data SetData Element

Person—estimated and projected Indigenous resident population


Data Source
ABS Indigenous estimates and projections (2011 Census-based)
Guide for use

Data source type: Census-based plus administrative by-product data


Data Element / Data SetData Element

Person—estimated resident population of Australia


Data Source
ABS Estimated resident population (2011 Census-based)
Guide for use

Data source type: Census-based plus administrative by-product data


Disaggregation:Help on this term

Current period (2014–15) by:

  • Indigenous status and type of diagnostic test (ECG monitoring, echocardiography and cardiac catheterisation)
  • Indigenous status, sex and age group (0–24, 25–34, 35–44, 45–54, 55–64, 65+)
  • Indigenous status and state/territory
  • Indigenous status and remoteness area.

Time series (2004–05 to 2014–15) by:

  • Indigenous status.
Disaggregation data elements:Help on this term
Data Element / Data SetData Element

PersonIndigenous status


Data Source
Medicare (MBS) data
Guide for use

Indigenous status is determined using the Voluntary Indigenous Identifier (VII) (see 'Comments' section for details).

Data source type: Administrative by-product data.


Data Element / Data SetService event—Medicare Benefits Schedule (MBS) item identifier, NN[NNN]
Data Source
Medicare (MBS) data
Guide for use

Data source type: Administrative by-product data.


Data Element / Data SetPerson—sex, code A
Data Source
Medicare (MBS) data
Guide for use

Data source type: Administrative by-product data.


Data Element / Data SetPerson—date of birth, DDMMYYYY
Data Source
Medicare (MBS) data
Guide for use

Used together with 'processing date' to calculate age. Age is calculated as at the date of processing for the last service processed for that individual within the financial year.

Data source type: Administrative by-product data


Data Element / Data SetAddress—Australian postcode, Australian postcode code (Postcode datafile) {NNNN}
Data Source
Medicare (MBS) data
Guide for use

Used to disaggregate data by state/territory and remoteness area. This data item is based on the patient's Medicare enrolment address, as at the date of processing for the last service processed for that individual within the financial year.

Data source type: Administrative by-product data


Data Element / Data SetService event—Medicare Benefits Schedule (MBS) processing date, DDMMYYYY
Data Source
Medicare (MBS) data
Guide for use

Used together with 'date of birth' to calculate age. Age is calculated as at the date of processing for the last service processed for that patient within the financial year.

Data source type: Administrative by-product data


Comments:Help on this term

General:

The numerator for this measure is drawn from MBS data. For 2016 reporting, the most recent data available are for 2014–15. MBS data reflect MBS claims processed and not necessarily all services rendered. For example, a person may be provided with equivalent care from a health-care provider who is not eligible to bill Medicare.

The data are based on the date of processing of claims. The claim may have been made by the patient (or their representative) or by the health-care provider. If a service was rendered but not claimed within the reference period, then that service will not be included in those data.

The denominator data used in the calculation of rates are Australian Bureau of Statistics (ABS) estimates and projections (Series B) based on the 2011 Census. Estimates for the non-Indigenous population were derived by subtracting the Indigenous estimated population from the total Australian estimated resident population.

Indigenous identification:

The identification of Indigenous Australians in MBS data is not complete. Since 2002, individuals who choose to identify as being of Aboriginal and/or Torres Strait Islander origin have been able to have this information recorded on the Medicare database through the Voluntary Indigenous Identifier (VII). Indigenous identification is through either a Medicare VII form or a tick-box on a Medicare enrolment form. Both methods indicate that identifying as Indigenous is optional. As at March 2016, an estimated 65% of the Indigenous population had identified as being of Aboriginal and/or Torres Strait Islander origin through the VII process (AIHW 2016).

Use of the VII in calculations for this measure

For this measure, Indigenous status is determined using the VII. As not all Indigenous Australians have recorded their Indigenous status with Medicare, the MBS data based on the VII were scaled up by the Australian Government Department of Health to reflect the size of the total Indigenous population. Estimates for non-Indigenous Australians were derived by subtracting the adjusted Indigenous estimates from the total number of people for whom the relevant MBS items were claimed.

Representational attributes

Representation class:Help on this termPercentage
Data type:Help on this termReal
Unit of measure:Help on this termPerson
Format:Help on this term

N[NN].N

Data source attributes

Data sources:Help on this term
Data SourceMedicare (MBS) data
Frequency
Monthly
Data custodian
Department of Health

Data SourceABS Indigenous estimates and projections (2011 Census-based)
Frequency
Periodic
Data custodian
Australian Bureau of Statistics

Data SourceABS Estimated resident population (2011 Census-based)
Frequency
Quarterly
Data custodian
Australian Bureau of Statistics

Accountability attributes

Reporting requirements:Help on this term

Annual reporting by the Australian Institute of Health and Welfare (AIHW 2015, 2016)

Organisation responsible for providing data:Help on this term

Australian Government Department of Health

Release date:Help on this term24/11/2016

Source and reference attributes

Submitting organisation:Help on this term

Australian Institute of Health and Welfare

Origin:Help on this term

AIHW 2016. Better Cardiac Care measures for Aboriginal and Torres Strait Islander people: second national report 2016. Cat. no. IHW 169. Canberra: AIHW.

Reference documents:Help on this term

AIHW (Australian Institute of Health and Welfare) 2015. Better Cardiac Care measures for Aboriginal and Torres Strait Islander people: first national report 2015. Cat. no. IHW 156. Canberra: AIHW.

AIHW 2016. Better Cardiac Care measures for Aboriginal and Torres Strait Islander people: second national report 2016. Cat. no. IHW 169. Canberra: AIHW.

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