Long-term medical utilization following ventilator-associated pneumonia in acute stroke and traumatic brain injury patients: a case-control study

Table 2 Regression models of medical utilization during the index hospitalization

	Hospitalization expenses ^b	Hospitalization days ^c	ICU days ^c
	β	β	β
VAP
No (control group) ^a
Yes (case group)	1.059**	0.003***	0.132***
Age	0.999	-0.001***	0.001*
Gender
Female ^a
Male	1.010	0.018**	-0.005
Diagnosis at hospitalization
Traumatic brain injury ^a
Acute hemorrhagic stroke	1.087***	0.056***	0.075***
Acute ischemic stroke	0.970	0.117***	0.046**
Hospital size
Medical center ^a
Regional hospital	0.746***	-0.157***	-0.036***
District hospital	0.476***	-0.387***	-0.228***
Chronic respiratory disease history
No ^a
Yes	0.922**	-0.045***	-0.027*
Ventilation days	1.036***	0.023***	0.032***
Number of Elixhauser comorbidities	1.022***	0.028***	0.010**
R-Square	0.353

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