Table 5.

Multiple linear regression analysis of predictors of length of stay

	Model 1			Model 2			Model 3
	β	t value	p value	β	t value	p value	β	t value	p value
Age	0.04	18.60	<0.0001	0.04	18.90	<0.0001	0.04	17.76	<0.0001
Gender	0.65	7.69	<0.0001	0.69	8.16	<0.0001	0.70	8.39	<0.0001
Multiple injury	5.09	22.36	<0.0001				5.45	23.02	<0.0001
Abdomen and pelvis	2.79	11.74	<0.0001				1.80	6.15	<0.0001
Thorax/neck	2.55	11.39	<0.0001				1.83	7.05	<0.0001
Upper extremities	−0.40	−3.55	0.0004				−0.93	−6.57	<0.0001
Lower extremities	1.27	12.17	<0.0001				0.41	2.72	0.007
Burns	2.19	10.94	<0.0001				2.57	12.20	<0.0001
Fracture				0.85	8.64	<0.0001	1.55	12.46	<0.0001
Internal organ injury				3.06	11.65	<0.0001	1.95	5.91	<0.0001
Intracranial injury				−0.19	−1.93	0.05	0.52	4.50	<0.0001
Model	R2=0.052, F=182.5, p<0.0001			R2=0.028, F=150.5, p<0.0001			R2=0.059, F=149.7, p<0.0001