Table 1.

Data collected from each health information source

Data source	Data obtained
Ambulance data
	Unit Record Number (URN)
	Name
	Age
	Sex
	Post code pickup
	Suburb pickup
	Triage code allocated by Communications Centre
	Suburb location of base station
	Date and time of dispatch
	Date and time of arrival on scene
	Date and time of on-scene departure
	ED transported to
	Date and time of arrival to ED
	Date and time of ED triage
	Date and time off-stretcher
	Date and time case completed
ED data
	Unit Record Number (URN)
	Name
	Age
	Sex
	Mode of arrival
	Australasian Triage Scale (ATS) category
	Presenting complaint category
	Date and time of arrival
	Date and time of triage
	Date and time seen by doctor
	Date and time of ED discharge
	Discharge disposition from ED
	International Classification of Diseases (ICD) 10 Code
Hospital admission data
	Unit Record Number (URN)
	Name
	Date of birth
	Sex
	Post code
	Date and time of hospital admission
	Date and time of hospital discharge
	Discharge destination