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Service Agreement - Department of Health and Human Services Tasmania: 2014, Percentage of all emergency department presentations seen within the recommended triage time, 2014

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termIndicator
Short name:Help on this termEmergency department patients seen within national benchmarks (percentage)
METeOR identifier:Help on this term581481
Registration status:Help on this termTasmanian Health, Archived 09/12/2016
Description:Help on this term

This indicator measures the percentage of patients that are treated within national recommended benchmarks for waiting times for each triage category in public hospital emergency departments.

Indicator set:Help on this termService Agreement - Department of Health and Human Services Tasmania: 2014 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 definitions applied are consistent with the national definitions used for reporting against the National Partnership Agreement on Hospital and Health Workforce Reform. The definitions include presentations that have been assigned a triage category between 1 and 5.  Presentations that are ‘did not wait’, ‘dead on arrival’ or the waiting time to service delivery is invalid are excluded for the purpose of calculating this indicator. See Australasian Triage Scale from the Australasian College for Emergency Medicine for a description of each triage category, including indicative clinical descriptors.

Time to treatment is calculated by subtracting the date and time the patient presented to the emergency department from the date and time treatment commenced. The time to treatment is then compared to the recommended treatment time for the allocated initial triage category. 

The indicator is calculated for the five triage categories as a whole and presented as a percentage.

Computation:Help on this term

100 x (Numerator ÷ Denominator)

Calculated separately for each triage category.

Numerator:Help on this term

Total number of presentations to emergency departments that were treated within benchmarks for each triage category:

  • Triage category 1: seen within seconds, calculated as less than 2 minutes (being a waiting time of 2 or below, which allows for 2:59 seconds*).
  • Triage category 2: seen within 10 minutes (being a waiting time of 10 or below, which allows for 10:59 seconds*).
  • Triage category 3: seen within 30 minutes (being a waiting time of 30 or below, which allows for 30:59 seconds*).
  • Triage category 4: seen within 60 minutes (being a waiting time of 60 or below, which allows for 60:59 seconds*).
  • Triage category 5: seen within 120 minutes (being a waiting time of 120 or below, which allows for 120:59 seconds*).

* This is in line with the national reporting standards.

Numerator data elements:Help on this term
Data Element / Data SetEmergency department stay—waiting time (to commencement of clinical care), total minutes NNNNN
Guide for use

Calculated by subtracting date and time the patient presents at the emergency department from date and time of commencement of service event.  Although triage category 1 is measured in seconds, it is recognised that the data will not be collected with this precision.

Data is obtained from the [WaitDurationInMins] field in Health Central.


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 SetNon-admitted patient emergency department service episode—episode end status, (Tasmanian) code N[NN]
Guide for use

Data is obtained from the [DepartureMethodRefId] field in Health Central and excludes records with the Episode end status indicate they departed to the following:

Value Meaning
4 Did not wait to be seen by a medical officer
7 Dead on arrival and not treated
9 Did not wait - patient elected to access GP/other


Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
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 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 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 SetNon-admitted patient emergency department service episode—episode end status, (Tasmanian) code N[NN]
Guide for use

Data is obtained from the [DepartureMethodRefId] field in Health Central and excludes records with the Episode end status indicate they departed to the following:

Value Meaning
4 Did not wait to be seen by a medical officer
7 Dead on arrival and not treated
9 Did not wait - patient elected to access GP/other


Data Element / Data SetEstablishment—organisation identifier, (Tasmanian) identifier NNNN
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 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 term
Specified 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 SetNon-admitted patient emergency department service episode—triage category, (Tasmanian) code N
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.

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
  • 2014-15 Service Agreement

Relational attributes

Related metadata references:Help on this term

Supersedes Service Agreement - Department of Health and Human Services Tasmania: 2013, KPI??-Percentage of all emergency department presentations seen within the recommended triage time, 2013 Tasmanian Health, Archived 09/12/2016

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