Table 1.

Hospital and Emergency Department (ED) Characteristics

Hospital	Group	Status	Hospital  Type	Annual ED  Patient  Visits	Number  of ED  Staff	ED Staff/Visits  Ratio (per  1,000 visits)
A	Exp	Mil	Comm	22,850	50	2.2
B	Con	Civ	Comm	33,343	51	1.5
C	Exp	Civ	Teach	40,667	95	2.3
D	Exp	Mil	Teach	40,173	103	2.6
E	Exp	Civ	Teach	33,337	104	3.1
F	Con	Mil	Teach	47,437	108	2.2
G	Exp	Civ	Teach	86,229	199	2.3
H	Con	Civ	Teach	82,901	215	2.6
I	Exp	Mil	Teach	57,873	133	2.3

Exp = Experimental; Con = Control; Mil = Military; Civ = Civilian; Comm = Community; Teach = Teaching.