|
Age (years)
|
|
Minimum
|
28
|
27
|
0.377
|
|
Maximum
|
68
|
67
|
|
Mean ± SD
|
57.12 ± 11.14
|
58.22 ± 10.91
|
|
Sex
|
|
Male
|
105 (68)
|
107 (66)
|
0.811
|
|
Female
|
49 (32)
|
54 (34)
|
|
Body-mass index (kg/m2)
|
25.52 ± 1.11
|
25.22 ± 1.85
|
0.084
|
|
Simplified Acute Physiology Score II
|
53 ± 13
|
50 ± 15
|
0.059
|
|
Sepsis-related Organ Failure Assessment score
|
8.12 ± 4.35
|
9.01 ± 4.61
|
0.079
|
|
Underlying chronic lung disease
|
42 (27)
|
51 (32)
|
0.459
|
|
Upper airway tract cancer history
|
6 (4)
|
4 (2)
|
0.531
|
|
Reason for the intensive care unit admission
|
|
Respiratory infection
|
54 (35)
|
61 (38)
|
0.392
|
|
Chronic obstructive pulmonary disease exacerbation
|
10 (7)
|
11 (7)
|
|
Extra-pulmonary acute respiratory distress syndrome.
|
15 (10)
|
12 (7)
|
|
Pulmonary atelectasis
|
5 (3)
|
3 (2)
|
|
Shock
|
42 (27)
|
57 (35)
|
|
Cardiogenic pulmonary edema
|
15 (10)
|
8 (5)
|
|
Neurologic conditions
|
13 (8)
|
9 (6)
|
|
Vasopressor support at inclusion
|
28 (18)
|
31 (19)
|
0.885
|
|
Bilateral pulmonary infiltrates
|
77 (50)
|
82 (51)
|
0.911
|
|
Respiratory rates (breaths/ min)
|
61 ± 9
|
62 ± 8
|
0.298
|
|
The partial pressure of arterial oxygen to fraction of inspired oxygen ratio
|
|
Mild hypoxemia (201–300 mmHg)
|
34 (22)
|
35 (22)
|
0.889
|
|
Moderate-to-severe hypoxemia (≤200 mmHg)
|
120 (78)
|
126 (78)
|
