Table 2.

Primary and secondary outcome data sources

	Suicide mortality data	Suicide attempt data
	National Coronial Information System (NCIS)	NSW ambulance data	NSW Admitted Patient Data Collection (APDC)	Emergency Department Data Collection (EDDC)
Level data to be acquired at	Individual/point data	Individual/point data	Individual/point data per hospital separation	Individual/point data
Years data will be acquired for	Jan 2006 – Dec 2021	Jul 2012 – Jun 2021	Jan 2007 – Jun 2021	Jan 2007 – Jun 2021
Summary of data	The NCIS is a data-storage, retrieval, analysis, interpretation, and dissemination system for coronial information. It enables coroners, their staff, public sector agencies, researchers, and other agencies to access coronial data to inform death- and injury-prevention activities	Ambulance data contains a collection of operational information from computer-aided dispatch (CAD), electronic medical records (eMR), and data documented by clinicians through patient healthcare records	APDC records all inpatient separations (discharges, transfers, and deaths) from all public, private, psychiatric, and repatriation hospitals in New South Wales (NSW), as well as public multi-purpose services, private day-procedure centres, and public nursing homes	The EDDC is an administrative data collection detailing presentations to emergency departments at public metropolitan hospitals in NSW. Diagnosis coding is not by trained clinical information manager but by medical, nursing, or clerical personal