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Service Agreement - Department of Health Tasmania: 2018, Emergency Department - Percentage of all emergency department patients with an ED length of stay less than 4 hours, 2018

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 LOS <4 hours (percentage)
METeOR identifier:Help on this term698698
Registration status:Help on this termTasmanian Health, Endorsed 28/03/2019
Description:Help on this term

For all patients presenting to a public hospital emergency department (including publicly funded emergency departments), the percentage of presentations where the time from presentation to physical departure, i.e. the length of the Emergency department stay, is within four hours.

Indicator set:Help on this termService Plan - Department of Health Tasmania: 2018 Tasmanian Health, Endorsed 28/03/2019
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 scope for calculation of this indicator is all hospitals reporting to the Non-admitted patient emergency department care (NAPEDC) National Minimum Data Set (NMDS) 2016–17.

Calculation includes all presentations with a physical departure date/time in the reporting period, including records where the presentation date/time is prior to the reporting period. Invalid records are excluded from the numerator and denominator. Invalid records are records for which:

  • Length of stay < 0
  • Presentation date or time is missing
  • Physical departure date or time is missing

Calculation includes presentations with any Type of visit to emergency department.

Recording departure time

Emergency department (ED) stay length is the amount of time, measured in minutes, between when a patient presents at an emergency department, and when the patient physically departs the emergency department. It is calculated as per the guidelines included in the NAPEDC NMDS 2016–17:

  • If the patient is subsequently admitted to this hospital (either short stay unit, hospital-in-the-home or non-emergency department hospital ward), then record the time the patient leaves the emergency department to go to the admitted patient facility.
    • – Patients admitted to any other ward or bed within the emergency department have not physically departed the emergency department until they leave the emergency department
    • – If the patient is admitted and subsequently dies before leaving the emergency department, then record the time the body was removed from the emergency department.
  • If the service episode is completed without the patient being admitted, then record the time the patient's emergency department non-admitted clinical care ended.
  • If the service episode is completed and the patient is referred to another hospital for admission, then record the time the patient leaves the emergency department.
  • If the patient did not wait, then record the time the patient leaves the emergency department or was first noticed as having left.
  • If the patient leaves at their own risk, then record the time the patient leaves the emergency department or was first noticed as having left.
  • If the patient died in the emergency department, then record the time the body was removed from the emergency department.
  • If the patient was dead on arrival, then record the time the body was removed from the emergency department. If an emergency department physician certified the death of the patient outside the emergency department, then record the time the patient was certified dead.

Presentation time and date are the time and date of the first recorded contact with an emergency department staff member. The first recorded contact can be the commencement of the clerical registration or triage process, whichever happens first.

Computation:Help on this term

100 x (Numerator ÷ Denominator)

Numerator:Help on this term

Number of emergency department presentations where emergency department stay length is less than or equal to four hours.

Numerator data elements:Help on this term
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.


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.


Data Element / Data SetEmergency department stay—presentation date, DDMMYYYY
Guide for use

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


Data Element / Data SetEmergency department stay—presentation time, hhmm
Guide for use

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


Denominator:Help on this term

Number of emergency department presentations.

Denominator data elements:Help on this term
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.


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.


Data Element / Data SetEmergency department stay—presentation date, DDMMYYYY
Guide for use

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


Data Element / Data SetEmergency department stay—presentation time, hhmm
Guide for use

Data is obtained from the [ArrivalDateTime] 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 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 term

NN[N]

Accountability attributes

Reporting requirements:Help on this term
  • 2018-19 Service Agreement

Relational attributes

Related metadata references:Help on this term

Supersedes Service Agreement - Department of Health and Human Services Tasmania: 2017, ACC4 - Emergency Department - Percentage of all emergency department patients with an ED length of stay less than 4 hours, 2017 Tasmanian Health, Archived 28/03/2019

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