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Table 1 Characteristcs of study population.

From: High flow nasal cannula oxygen (hfnc) versus non-invasive positive pressure ventilation (nippv) in acute hypoxemic respiratory failure. a pilot randomized controlled trial

  HFNC (N = 14) NIPPV (N = 16) P    HFNC (N = 14) NIPPV (N = 16) P  
Female, n (%) 8 (57) 8 (50)    Duration of therapy, hours median Interquartile range 24.00 14.04-59.04 17.00 8.86-35.14 0.38  
Age, y, mean (SD) 61,4 (13.7) 72.3 (19.0) 0.08   Outcome Intubation 9 (64.2) 9 (56.2) 0.72  
APACHE IV, mean (SD) 58.3 (17.2) 65.5 (23.5) 0.33       
Etiology of ARF          
Pulmonary edema (cardiogenic) 4 9        
Community-acquiered pneumonia 5 5        
Sepsis 2 -        
Aspiration 2 -        
Other 1 2