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Table 2 Regression models of medical utilization during the index hospitalization

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

  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   
  1. a Reference group; b robust regression; c Poisson regression
  2. *p < 0.05; **p < 0.01; ***p < 0.001