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Service Agreement - Department of Health and Human Services Tasmania: 2012, KPI16-Percentage of all emergency department presentations who have physically left the emergency department within four hours, 2012

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termIndicator
Short name:Help on this termEmergency department episodes presentations completed within 4 hours (percentage)
METeOR identifier:Help on this term463151
Registration status:Help on this termTasmanian Health, Archived 09/12/2016
Description:Help on this term

The percentage of emergency department patients, who either physically leave the emergency department for admission to hospital, are referred for treatment or are discharged, whose total time in emergency department is within four hours of presentation.

Indicator set:Help on this termService Agreement - Department of Health and Human Services Tasmania: 2012 Tasmanian Health, Archived 12/12/2016
Outcome area:Help on this termEmergency Department access Tasmanian Health, Endorsed 07/12/2016

Collection and usage attributes

Computation description:Help on this term

The numerator and denominator

  • include records with the triage categories from 1 to 5.
  • include 'did not wait' and 'dead on arrival' records.
  • exclude records if the Waiting time to service is invalid.

Presented as a percentage.

Computation:Help on this term

100 x (Numerator ÷ Denominator)

Numerator:Help on this term

Total number of patients whose length of stay in the emergency department is less than 4 hours (being a length of service episode of 4 hours or below, which allows for 4:00:59 seconds*).

* This is in line with the national reporting standards.

Numerator data elements:Help on this term
Data Element / Data SetNon-admitted patient emergency department service episode—triage category, (Tasmanian) code N
Guide for use

Data is obtained from the [TriageCategoryRefId] field in Health Central and includes records with the triage categories from 0 to 5.


Data Element / Data SetGuide for use

Data is obtained from the [TotalTimeInMins] field in Health Central and only includes records with the service episode length is less than 4 hours (being a length of service episode of 4 hours or below, which allows for 4:00:59 seconds*).

* This is in line with the national reporting standards.


Data Element / Data SetEpisode of care—episode identifier, N[NNNNNN]
Guide for use
Data is obtained from the [EmergencyIdentifier] field in Health Central.

Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
Data Element / Data SetEmergency department stay—physical departure date, DDMMYYYY
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.
Data Element / Data SetEmergency department stay—physical departure time, hhmm
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.
Denominator:Help on this termTotal number of presentations to emergency departments
Denominator data elements:Help on this term
Data Element / Data SetNon-admitted patient emergency department service episode—triage category, (Tasmanian) code N
Guide for use

Data is obtained from the [TriageCategoryRefId] field in Health Central and includes records with the triage categories from 1 to 5.


Data Element / Data SetEpisode of care—episode identifier, N[NNNNNN]
Guide for use
Data is obtained from the [EmergencyIdentifier] field in Health Central.

Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
Data Element / Data SetEmergency department stay—physical departure date, DDMMYYYY
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.
Data Element / Data SetEmergency department stay—physical departure time, hhmm
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.
Disaggregation:Help on this termSpecified disaggregation: Hospital, triage category and reporting month based on the date of the end of the emergency department stay
Disaggregation data elements:Help on this term
Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
Data Element / Data SetNon-admitted patient emergency department service episode—triage category, (Tasmanian) code N
Data Element / Data SetEmergency department stay—physical departure date, DDMMYYYY
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.
Data Element / Data SetEmergency department stay—physical departure time, hhmm
Guide for use
Data is obtained from the [DepartureDateTime] field in Health Central.

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 termNN[N]

Accountability attributes

Reporting requirements:Help on this term
  • National Health Reform Agreement
  • 2012-13 Service Agreement
Benchmark:Help on this term

By 2015, 95 per cent of all emergency department patients presenting to a public hospital emergency department for whom it is clinically appropriate to either physically leave the emergency department for admission to hospital, be referred for treatment, or be discharged within four hours.

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