Recognition of out-of-hospital cardiac arrest during emergency calls — a systematic review of observational studies

Søren Viereck; Thea Palsgaard Møller; Josephine Philip Rothman; Fredrik Folke; Freddy Knudsen Lippert

doi:10.1186/s13049-017-0350-8

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

Table 1 Basic characteristics for the studies included

From: Recognition of out-of-hospital cardiac arrest during emergency calls — a systematic review of observational studies

Author, year of publication	Study period	Study months	Country of origin	Number of OHCAs analysed	Study design	Data source for registration of recognition	Data source for clinical OHCA
[26]	01-01-2004-31-05-2005	17	Sweden	250	Observational, prospective data collection	Data	Ambulance records/OHCA registry
[7]	1/1-2004 - 1/9-2004	8	The Nether-lands	285	Observational, prospective.	Data	Ambulance records
[23]	1/1-2004 - 31/12-2004	12	Northern Ireland	167	Observational, prospective data collection	Data	Ambulance records/autopsy report
[27]	1/1-2011 - 31/12-2013	36	Switzerland	1,254	Observational, prospective	Emergency call recordings	Ambulance records
[22]	1/1-2003 - 31/3-2003	3	Australia	738	Observational, retrospective	Data	OHCA registry
[19]	1/1-2000 - 30/6-2000	6	US (MO)	370	Observational, retrospective	Data	Ambulance records
[21]	1/1-2007 - 31/12-2007	12	Norway	140	Observational	Emergency call recordings	OHCA registry
[21]	1/5-2010 - 30/4-2011	12	US (VA)	100	Observational	Emergency call recordings	OHCA registry
[29]	1/3-2010 - 31/8-2010	6	Finland	164	Observational, prospective cohort study	Data	Ambulance records
[30]	1/1-1997 - 31/12-2002	72	Finland	373	Observational, retrospective, prospective data collection	Data	OHCA registry
[6]	1/1-2011 - 31/12-2011	12	US (WA)	476	Observational, retrospective cohort study	Emergency call recordings and data	N/A
[14]	1/1-2004 - 01/04-2004	3	Taiwan	199	Observational, retrospective	Data	Ambulance records
[25]	1/1-1996 - 31/12-1996	12	Finland	679	Observational, prospective data collection	N/A	Ambulance records
[15]	1/1-2011 - 31/12-2011	12	Italy	142	Observational, Retrospective cohort study	Data	Ambulance records
[28]	15/5-2012 - 31/5-2012	0.5	France	82	Observational, prospective	Emergency call recordings	Ambulance records
[24]	1/5-2009 - 1/10-2009^a	17	Canada	1,536	Observational, prospective cohort study	Emergency call recordings	OHCA registry

^a = In one of the study centres (Ottawa) the study period was 1/1-2008 - 01/02-2009. US: United States, NO: Norway, OHCA: Out-of-Hospital Cardiac Arrest, N/A: Not available, MO: Missouri, VA: Virginia, WA: Washington

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