Table 1 Characteristcs of study population.

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