Response Time Threshold for Predicting Outcomes of Patients with Out-of-Hospital Cardiac Arrest

Table 3

Receiver operating characteristic (ROC) curve analysis of the optimal response time threshold for predicting survival to hospital discharge.

Situation		Survival to hospital discharge
		Threshold (minutes)	AUC	Lower	Upper
Overall		6.2	0.618	0.582	0.654	<0.001
Witnesses	With	6.2	0.609	0.570	0.647	<0.001
	Without	4.2	0.643	0.544	0.743	<0.001
Cardiac arrest location	Public	7.2	0.628	0.576	0.681	<0.001
	Residence	6.1	0.611	0.563	0.66	<0.001
Bystander CPR	With	6.3	0.588	0.537	0.64	0.001
	Without	6.1	0.655	0.606	0.703	<0.001
Attended by EMS-paramedic	With	6.2	0.635	0.581	0.689	<0.001
	Without	5.0	0.605	0.558	0.653	<0.001
Defibrillation by AED	With	6.2	0.619	0.568	0.669	<0.001
	Without	5.0	0.632	0.572	0.675	<0.001
Age	<80 years	6.3	0.627	0.589	0.665	<0.001
	≥80 years	5.1	0.588	0.524	0.651	0.007