Table 4. Comparison of SEHC Trauma Activation Patients and SEHC Trauma Nonactivation Patients, minimum alcohol and illicit drug rates.

	Activations		Non Activations		P-value
	n = 338		n = 234
Mechanism of Injury
violent	47	13.9%	16	6.8%	0.008
fall	82	24.3%	156	66.7%	0.0001
motor vehicular crash	93	27.5%	29	12.4%	0.0001
Age (years)	41±21		59±26		0.0001
Glasgow Coma Score	13 (3–15)		15 (10–15)		0.0001
Injury Severity Score	11 (1–57)		8 (2–26)		0.0001
Died	20	5.9%	1	0.4%	0.001
Length of Stay (days)	5±8		4±4		0.0001
Percent Tested
blood alcohol	295	87.3%	43	18.4%	0.0001
urine drug	185	54.7%	47	20.1%	0.0001
Blood Alcohol Positive	78	23.1%	11	4.7%	0.0001
Illicit Drug Positive	53	15.7%	14	6.0%	0.0003

SEHC, St. Elizabeth Health Center; Violent mechanism: gunshot wound, stab wound, or assault.

Minimum Rate is number of positive tests divided by total patients, tested and not tested.