Impact of the COVID-19 pandemic on prehospital and in-hospital treatment and outcomes of patients after out-of-hospital cardiac arrest: a Japanese multicenter cohort study

Table 4 Outcomes of patients before and after the COVID-19 pandemic

Variable	Pre-pandemic (n = 2015)		Post-pandemic (n = 5023)		p-value
ROSC					< 0.01
Prehospital ROSC	232/2015	(11.5)	448/5023	(8.9)
ROSC after hospital arrival	438/2015	(21.7)	915/5023	(18.2)
Patient status					< 0.01
Hospital admission	507/2015	(25.2)	910/5023	(18.1)
Died in ED	1508/2015	(74.8)	4113/5023	(81.9)
Survival at 1 month	143/1995	(7.2)	279/4982	(5.6)	0.01
Favorable outcome (CPC 1, 2) at 1 month	77/1953	(3.9)	134/4933	(2.7)	< 0.01
Favorable outcome at 3 months	66/1932	(3.4)	128/4908	(2.6)	0.07

Data are shown as the number of positive observations/total number of observations (%). For each variable, the number of missing observations can be obtained as the difference between the total number of patients in each group and the total number of observations
ROSC, return of spontaneous circulation; ED, emergency department; CPC, cerebral performance category

ISSN: 1471-227X