Table 1.

Demographic Characteristics, Resuscitation Status, and Outcomes for Patients with Cardiac Arrest, According to the Location of the Arrest.^*

Variable	Total Arrests (N = 12,930)	Arrests in Private Location		Arrests in Public Location (N = 2042)
		Home (N = 9564)	Residential or Other Private Facility (N = 1324)
Mean age — yr	66.3±16.8	66.3±16.6	75.5±14.9	60.2±15.7
Male sex — no. (%)†	8227 (64)	5946 (62)	617 (47)	1664 (81)
Bystander witnessed arrest — no. (%)‡	5034 (39)	3485 (36)	424 (32)	1125 (55)
Bystander performed CPR — no. (%)§	4077 (32)	2463 (26)	689 (52)	925 (45)
Bystander applied AED — no. (%)¶	273 (2)	69 (1)	45 (3)	159 (8)
Bystander delivered AED shock — no. (%)	163 (1)	25 (<1)	14 (1)	124 (6)
EMS witnessed arrest — no. (%)	1115 (9)	835 (9)	119 (9)	161 (8)
Initial VF or pulseless VT — no. (%)∥	3336 (26)	2134 (22)	167 (13)	1035 (51)
Survival to hospital discharge — no. (%)	946 (7)	549 (6)	41 (3)	356 (17)

^*Plus–minus values are means ±SD. AED denotes automated external defibrillator, CPR cardiopulmonary resuscitation, EMS emergency medical services, VF ventricular fibrillation, and VT ventricular tachycardia.

^†Data were missing in 0.1% of cases.

^‡Data were missing and the arrest was presumed not to have been witnessed in 15.8% of cases.

^§Data were missing and CPR was presumed not to have been given in 8.5% of cases.

^¶Data were missing and the AED was presumed not to have been applied in 8.5% of cases.

^∥The initial cardiac-arrest rhythm (as determined by EMS personnel) was not known in 8% of cases, and these patients were therefore excluded from the analysis.