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Service Agreement - Department of Health and Human Services Tasmania: 2012, KPI11-Weighted separations, 2012

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termIndicator
Short name:Help on this termWeighted separations (care type 1)
METeOR identifier:Help on this term493686
Registration status:Help on this termTasmanian Health, Archived 09/12/2016
Description:Help on this term

This indicator measures the total weighted separations which indicate the costliness of an Australian Refined Diagnosis Related Group (AR-DRG) relative to all other AR-DRGs such that the average cost weight for all separations in 1.00. 

A separation for an AR-DRG with a cost weight of 5.0, therefore, on average costs 10 times as much as separations with a cost weight of 0.5.

Indicator set:Help on this termService Agreement - Department of Health and Human Services Tasmania: 2012 Tasmanian Health, Archived 12/12/2016

Collection and usage attributes

Computation description:Help on this term

Calculated using the total number of weighted separations for Acute Inpatient Activity (Care Type 1) including Outside Referred Patients and acute mental health inpatient activity.

The average cost weight used to construct this indicator is calculated from the National Hospital Morbidity Database, using AR-DRG public cost weights published by the Department of Health and Ageing.

Casemix adjustment is based on the round of cost weights attributed to the AR-DRG assigned to each separation.

National Hospital Cost Data Collection (NHCDC) Round 14 (2009-10) AR-DRG v6.0x public sector estimated cost weights and AR-DRG v6.0x will be applied to calculate weighted separations for 2012-13.

For 2012-13 onwards, this indicator excludes admissions funded by the Tasmanian Government Endoscopy and Elective Surgery Initiative and the National Partnership Agreement on Improving Health Services in Tasmania.

Computation:Help on this term

The formula to calculate weighted separation is:

Weighted separation

where:

WSeps Weighted separations
ni Number of separations in the ith DRG
k Number of DRGs (in ARDRG)
CWi Cost weight for the ith DRG

 

Numerator:Help on this termNo numerator
Numerator data elements:Help on this term
Data Element / Data SetEpisode of admitted patient care—diagnosis related group, code (AR-DRG v 6.0x) ANNA
Guide for use
Data is obtained from the [DRGCodeId] field in Health Central.
Data Element / Data SetHospital service—care type, Tasmanian code X[XXXX]
Guide for use

Data is obtained from the [DischargeCareTypeRefId] field in Health Central and includes the Care type recorded as Acute care (include qualified neonates) only.


Data Element / Data SetData Element

AR-DRG version 6.0x public sector cost weights (2009-10) Round 14


Data Source
National Hospital Cost Data Collection (NHCDC)
Data Element / Data SetEpisode of care—source of funding, Tasmanian code XX[AAAAA]
Guide for use

Data is obtained from the [DischargeAdminCategoryRefId] field in Health Central and includes records with the Hospital patient funding source recorded as Outside referred patient (inpatient) or Bulk billed (outside referred patient).


Data Element / Data SetEpisode of admitted patient care—separation date, DDMMYYYY
Guide for use
Data is obtained from the [DischargeDateTime] field in Health Central.
Data Element / Data SetPerson—person identifier, identifier (Tasmanian) N(9)
Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
Data Element / Data SetData Element

The [SourceIdentifier] field from the PIC.Dim_Endo$4Mill and PIC.Dim_NPAIHST tables in Health Central is the unique identifier to identify the activities funded by the Tasmanian Government Endoscopy and Elective Surgery Initiative and the National Partnership Agreement on Improving Health Services in Tasmania.

The [SourceIdentifier] field is the ProviderSpellRefNo and is unique to the Waiting List.  Internally it is also referred to as the FactWaitingList.SourceIdentifier.


Denominator:Help on this termNo denominator
Disaggregation:Help on this termSpecified disaggregation: Hospital.
Disaggregation data elements:Help on this term
Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN

Representational attributes

Representation class:Help on this termCount
Data type:Help on this termReal
Unit of measure:Help on this termEpisode
Format:Help on this termNNN[NNN].NN

Accountability attributes

Reporting requirements:Help on this term
  • Your Health and Human Services: Progress Chart

  • 2012-13 Service Agreement
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