Table 2.

Type of bystander and type of CPR

		Cardiac arrest at home
Variable	Missing*	Yes	No	p Value
Type of bystander	182, 111	n=4114	n=3831
Lay person†		2728 (66.3%)	1701 (44.4%)	<0.0001
Medical personnel		718 (17.4%)	1559 (40.7%)	<0.0001
Ambulance personnel		79 (1.9%)	150 (3.9%)	<0.0001
Police		38 (0.9%)	137 (3.6%)	<0.0001
Other		634 (15.4%)	518 (13.5%)	0.018
Type of bystander CPR	493, 372	n=3803	n=3570
Chest compression and ventilation		2466 (64.8%)	2835 (79.4%)	<0.0001
Chest compression only		327 (8.6%)	336 (9.4%)	NS
Ventilation only		1010 (26.6%)	399 (11.2%)	<0.0001

Values are n (%).

*Number of patients with missing information in the two categories.

†On a few occasions more than one category was involved.

CPR, cardiopulmonary resuscitation.