The Prognosis of Cardiac Origin and Noncardiac Origin in-Hospital Cardiac Arrest Occurring during Night Shifts

Table 2

Event characteristics.

	⁢Day/evening (331)		⁢Night (213)		value
Department of events
Internal medicine	297	89.7%	193	90.6%	0.469
Surgical medicine	24	7.3%	17	8.0%
Other	10	3.0%	3	1.4%
Intervention before events
Oxygen therapy	163	49.2%	115	54.0%	0.280
Inhalation therapy	29	8.8%	28	13.1%	0.103
Vascular access	306	92.4%	201	94.4%	0.386
Antibiotics therapy	199	60.1%	128	60.1%	0.995
Inotropic agent	7	2.1%	2	0.9%	0.294
First documented cardiac rhythm
Vf or pulseless VT	19	5.70%	2	0.90%	<0.001
PEA	222	67.10%	114	53.50%
Asystole	90	27.20%	97	45.50%
Discovery status at time of event
Deteriorated disease course	189	57.1%	108	50.7%	0.144
Witnessed	256	77.3%	98	46.0%	<0.001
Bystander CPR	135	40.8%	50	23.5%	<0.001
Possible cause of cardiac arrest
Cardiac origin	115	34.7%	85	39.9%	0.223
Noncardiac origin	216	65.3%	128	60.1%