TABLE 4.

Multinomial Logistic Regression Modeling Cluster Assignment

Variables	Cluster Type	Odds Ratio	95% CI		p value
Trauma center status					0.36
	Low vs. average	0.429	0.131	1.405	0.16
	Average vs. high	1.279	0.420	3.890	0.67
	Low vs. high	0.548	0.174	1.726	0.31
High technology					0.23
	Low vs. average	0.308	0.076	1.247	0.10
	High vs. average	0.539	0.113	2.561	0.44
	Low vs. high	0.572	0.170	1.932	0.37
Teaching hospital					0.37
	Low vs. average	0.846	0.309	2.316	0.75
	High vs. average	0.463	0.154	1.388	0.17
	Low vs. high	1.829	0.607	5.508	0.28