National Indigenous Reform Agreement: PI 11-Child under 5 hospitalisation rates by principal diagnosis, 2012
Identifying and definitional attributes
|Metadata item type:||Indicator|
|Short name:||PI 11-Child under 5 hospitalisation rates by principal diagnosis, 2012|
|Registration status:||Indigenous, Archived 13/06/2013|
Hospital separation rates for children aged under five years by principal diagnosis, by Indigenous status.
|Rationale:||Monitoring hospitalisation rates for different diseases so that it is understood which diseases are major contributors to morbidity among Indigenous children and where programs are succeeding and where they are not will assist in achieving the closing the gap targets.|
|Indicator set:||National Indigenous Reform Agreement (2012) Indigenous, Archived 13/06/2013|
|Outcome area:||Indigenous children have the same health outcomes as other Australian children Indigenous, Endorsed 21/07/2010|
|Quality statement:||National Indigenous Reform Agreement: PI 11-Child under 5 hospitalisation rates by principal diagnosis, 2012 QS Indigenous, Archived 13/06/2013|
Collection and usage attributes
|Population group age to:||Children aged under 5 years.|
Rates are calculated for Indigenous and Other Australians.
Rate ratios and rate differences are calculated for Indigenous: Other Australians.
Principal diagnoses to be listed from highest to lowest Indigenous percentage for the most recent period (2 years combined data).
For variability bands: More work is to be undertaken by the AIHW regarding the use of variability bands for hospitalisation data for COAG reporting.
For trends: percentage change and statistical significance of change is to be calculated (required for CRC reporting).
Number; rate per 1,000 persons; percentage; rate ratio and rate difference.
Excludes care types of:
Leading principal diagnoses (and ICD-10-AM codes) are those reported in the Aboriginal and Torres Strait Islander Health Performance Framework:
• Total hospitalisations
For single year data by state/territory, the following top 6 principle diagnoses are to be reported:
The top 6 principal diagnoses need to be re-assessed each reporting period. If a change is identified, data may need to be backcast to the baseline year for the most recent set of top 6 diagnoses to ensure a consistent time series.
Excludes care types of:
Other Australians includes non-Indigenous and ‘not stated’ Indigenous status.
Crude percentage: number of separations by principal diagnosis divided by total separations.
Rate: 1,000 x (Numerator ÷ Denominator).
Rate ratio: Indigenous rate divided by Other Australian rate.
Rate difference: Indigenous rate minus Other Australian rate.
Percentage change: Calculated by multiplying the average annual change over the period by the number of data points less 1. This is then divided by the rate for the first year in the series and multiplied by 100.
The average annual change in rates, rate ratios and rate differences are calculated using linear regression which uses the least squares method to calculate a straight line that best fits the data and returns an array that best describes the line. The simple linear regression line, Y = a + bX, or ‘slope’ estimate was used to determine the average annual change in the data over the period. The formula used to calculate the slope estimate and standard error of the slope in Microsoft Excel is:
LINEST (known_y’s, known_x’s, true) entered as an array formula (Ctrl, Shift, Enter).
Statistical significance of change: More work to be undertaken by the AIHW regarding the use and methodology for statistical significance of change for hospitalisation data.
|Numerator:||Number of hospital separations for children aged under five years by leading principal diagnosis.|
|Numerator data elements:|
|Denominator:||Total population of children aged under five years.|
|Denominator data elements:|
Current period: 2008-09 to 2009-10:
For Indigenous and non-Indigenous (numbers, percentage, rates, rate ratio, and rate difference):
Time series: 2007-08, 2008-09 (previously supplied), 2009-10 (required for 2012 reporting):
For Indigenous and non-Indigenous (rates, rate ratio, rate difference, and percentage change. Variability bands and statistical significance of change to be advised by AIHW):
|Disaggregation data elements:|
Most recent data available for 2012 CRC report is 2009-10.
Aggregated data (2008-09 to 2009-10) will be used for the current reporting period.
Single year data (2007-08, 2008-09 and 2009-10) will be used for time series (national for total hospitalisations and for leading principal diagnoses; state/territory for total hospitalisations and for top six leading principal diagnoses (ICD-10-AM 6th edition chapter level); noting that previously supplied data will be used unless a resupply is provided).
National disaggregation by Indigenous status will be based on data only from jurisdictions for which the quality of Indigenous identification is considered acceptable.
At this stage, only selected state/territories are considered of accepted quality for reporting hospitalisations of Indigenous persons: NSW, Vic, Qld, WA, SA & NT public hospitals. National rates should include these six states and territories only. Tas/ACT data should be reported separately with caveats.
Disaggregation by state/territory is based on the state/territory of the usual residence of the patient.
Disaggregation by Indigenous status is to be reported using 2 years combined data for the current reporting period. Single year data is to be reported for time series.
To report trends, the COAG Reform Council will separately request percentage change and statistical significance testing for this indicator directly from the data provider (AIHW).
More work is to be undertaken by the AIHW regarding the use of variability bands for hospitalisation data for COAG reporting.
Baseline year for NIRA target (Halve the child mortality gap within a decade) is 2008; baseline year for this indicator is 2007-08; target year is 2018.
|Unit of measure:||Person|
Indicator conceptual framework
|Framework and dimensions:||Health Conditions|
Data source attributes
|Reporting requirements:||National Indigenous Reform Agreement.|
|Organisation responsible for providing data:||Australian Institute of Health and Welfare.|
|Further data development / collection required:|
Improve the quality of Indigenous identification in hospital separations data.
Source and reference attributes
|Steward:||National Indigenous Reform Agreement Performance Information Management Group|
|Related metadata references:|
Supersedes National Indigenous Reform Agreement: PI 11-Child under 5 hospitalisation rates by principal diagnosis, 2011 Indigenous, Archived 01/07/2012