Table 1

Clinical characteristics of patients with ARDS and control subjects


ARDS N = 12
CONTROLS N = 7
p

Body Weight (kg)
74 ± 16
58 ± 12
0.05
Age (years)
60 ± 16
50 ± 23
0.37
Mechanical Ventilation (days)
23 ± 16
81 ± 129
0.21
Mechanical Ventilation at the start of the study (days)
2.6 ± 2
69 ± 132
0.23
Male/Female (number)
8/4
3/4
0.324
Survival (alive/total number)
4/12
7/7
0.006
Mean FiO2 (percentage)
60 ± 16
24 ± 14
<0.001
Mean PEEP (cm H2O)
7.7 ± 1.8
1.3 ± 0.2
<0.001
Mean AaDO2 §
283 ± 129
52 ± 38
<0.001
Mean PaO2/FiO2*
162 ± 50
382 ± 79
<0.001

§ AaDO2 = Mean Alveolar-arterial oxygen gradient during the study

* PaO2/FiO2 = PaO2/FiO2 ratio during the study period

Data is presented as mean ± SD

Cogo et al. Respiratory Research 2007 8:13   doi:10.1186/1465-9921-8-13