. 2020 Nov 2;15(11):e0241751. doi: 10.1371/journal.pone.0241751

Table 1. Description of included cardiac arrest studies.

Investigators and year of publication	Data source, study period, and median year	Time period of CA occurrence	Excluded	Patients (n)	Perioperative CA (n)	Anesthesia-related CA (n)	Entirely anesthesia-related CA (n)
Ruiz Neto & Amaral, 1986 [20]	Tertiary university hospital Medical records 1982–1984	OR	Cardiac surgery	51,422	205	74	36
Ruiz Neto & Amaral, 1986 [20]	1983	OR	Cardiac surgery	51,422	205	74	36
Braz et al., 1999 [22]	Tertiary university hospital—Database	OR and PACU	-	58,553	184	21	-
	1988–1996
	1992
Braz et al., 2006 [23]	Tertiary university hospital—Database	OR and PACU	-	53,718	-	18	10
	1996–2005
	2001
Sebbag et al., 2013 [24]	Tertiary university hospital—Database 2007	OR	Cardiac surgery	40,379	52	21	0
Sebbag et al., 2013 [24]	2007	OR	Cardiac surgery	40,379	52	21	0
Toledo et al., 2013 [25]	Tertiary university hospital—Database 2007–2009	OR	Cardiac surgery	81,587	81	-	-
	Tertiary university hospital—Database 2007–2009		< 18 years
	2008		< 18 years
Carlucci et al., 2014 [26]	Tertiary university hospital—Database	OR and PACU	-	90,909	280	-	-
	1996–2009
	2003
Vane et al., 2019 [21]	Tertiary university hospital—Database 2007–2014	OR	Cardiac surgery	167,574	160	-	-
Vane et al., 2019 [21]	2011	OR	< 18 years	167,574	160	-	-

Abbreviations. CA: cardiac arrest; OR: operating room; PACU: postanesthesia care unit