Table 4.

Patient, Scene, and Event Characteristics of OOHCA cases with transport initiated without documented ROSC, by site

	% Female	Median Age (years)	Median Response Time (minutes)	Median Scene Time (minutes)	% in Public Location	% with Bystander CPR	% EMS-witnessed	% ALS on scene	% with ROSC After Transport Initiated
Alabama	43.4	65	6.0	15.0	13.5	24.8	13.8	99.7	4.8
Iowa	36.6	65	4.0	19.8	19.2	30.2	14.7	99.3	14.0
Ottawa-OPALS Group, Ontario, Canada	31.6	67	5.4	23.2	19.1	26.7	13.3	82.4	5.9
Pittsburgh, Pennsylvania	34.0	66	6.0	24.0	20.9	38.0	8.6	99.8	9.1
Portland, Oregon	25.7	60	4.7	25.1	27.8	43.3	8.8	100. 0	13.4
Seattle/King County, Washington	28.8	59	4.9	33.8	31.4	37.3	33.1	97.5	21.2
Toronto, Ontario, Canada	31.7	67	6.1	20.0	25.1	24.5	14.8	62.8	6.2
Vancouver, British Columbia, Canada	27.2	65	6.8	19.2	24.8	34.0	18.6	37.8	10.8
All Sites	32.4	66	5.7	21.5	22.0	29.3	14.2	78.9	8.4
p value	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001