Table 1. Demographics of EMS agencies.

Agency characteristics	(n) % (Total n=61)
Agency type & geography
Rural Ground	(27) 44.2%
Urban Ground	(22) 36.1%
Air Medical	(9) 14.8%
Both Ground and Air Medical	(3) 4.9%
Number of employees
1-20 employees	(7) 11.5%
21-50 employees	(31) 50.8%
51-100 employees	(14) 22.9%
101-400 employees	(9) 14.8%
Number of annual patient contacts
≥ 2,500 patient contacts
	(26) 42.6%
	(16) 26.2%
2,501-5,000 patient contacts
	(7) 11.5%
5,001-10,000 patient contacts
	(12) 19.7%
> 10,000 patient contacts
Affiliation
Hospital-based model	(18) 29.5%
Fire-based model	(7) 11.5%
Third Service / Govt. model	(12) 19.7%
Private / freestanding model	(24) 39.3%
Percentage of patient contacts that were cardiac arrest or trauma
≤ 2%	(25) 41.0%
> 2%	(29) 47.5%
Did Not Report	(7) 11.3%

Notes: One agency’s data was excluded with extremely low response rate (9.6%).