Table 1.

Description of Sites, EMS Systems and Hospitals in the 7 Study Regions

							Hospitals
Site	EMS service area population*	Geographic area, sq miles	Population density, persons per sq mile	Service area description	EMS agencies†	Type EMS response	Hospitals	Level I	Level II	Level III	Level IV
A	2,082,318	3,655	570	Primarily urban/suburban, some rural	10	Single tier, dual ALS	16	2	1	0	0
B	1,916,441	2,126	901	Primarily urban/suburban, some rural	32	Tiered response, BLS/ALS	18	1	0	3	5‡
C	610,345	153	3,989	Urban/suburban	1	Tiered response, BLS/ALS	11	4	2	0	0
D	744,041	46	16,175	Urban	1	Tiered response, BLS/ALS	12	1	0	0	0
E	549,644	1,254	438	Primarily urban/suburban, some rural	2	Tiered response, BLS/ALS	28	1	1	0	0
F	2,503,631	1,740	1,439	Urban/suburban	2	Single tier, dual ALS	20	3	1	0	0
G	2,112,957	3,616	584	Primarily urban/suburban, some rural	46	Tiered response, BLS/ALS	17	3	3	0	0
Total	10,519,377	12,590	836	-	94	-	122	15	8	3	5

^*2009 population estimates, except site D (2006 estimate).

^†The number of EMS agencies listed represent those included in the study. In several sites, there are additional first responder, non-transport agencies that participate in the EMS system.

^‡Includes one Level V hospital.

ALS, advanced life support; BLS, basic life support; EMS, emergency medical services.