. 2023 Jan 5;38(1):95–102. doi: 10.1017/S1049023X22002424

Table 1.

Between-Group Differences in Achieving Any ROSC and Admission ROSC in OHCA Patients

Variables		Any ROSC N (%)	P Value	Admission ROSC N (%)	P Value
Witnessing OHCA	Witnessed	388 (23.9)	<.01	314 (24.1)	<.01
Witnessing OHCA	Not Witnessed	22 (12.3)	<.01	14 (10.8)	<.01
Etiology of OHCA	Cardiac	264 (21.3)	.07	232 (18.7)	.03
Etiology of OHCA	Non-Cardiac	33 (28.4)	.07	31 (27.0)	.03
OHCA Location	Residence	236 (16.9)	<.01	201 (18.3)	<.01
OHCA Location	Out-of-Residence	178 (40.7)	<.01	129 (36.8)	<.01
Initial Rhythm (within CPR Attempted Group)	Shockable	183 (45.8)	<.01	158 (43.8)	<.01
Initial Rhythm (within CPR Attempted Group)	Non-Shockable	183 (15.1)	<.01	164 (15.5)	<.01

Abbreviations: ROSC, return of spontaneous circulation; OHCA, out-of-hospital cardiac arrest; CPR, cardiopulmonary resuscitation.