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Table 3 Baseline respiratory and hemodynamic parameters of the 52 ARDS patients

From: High levels of circulating leukocyte microparticles are associated with better outcome in acute respiratory distress syndrome

Variables Survivors Non-survivors P-value
  ( n = 31) ( n = 21)  
PaO2/FiO2 (mmHg) (mean ± SD) 114 ± 34 106 ± 33 0.4
PaCO2 (mmHg) (median (IQR)) 43 (40 to 57) 46 (40 to 52) 0.6
FiO2 (mean ± SD) 0.69 ± 0.14 0.75 ± 0.18 0.2
Total PEEP (cmH2O) (mean ± SD) 11.5 ± 2.7 13.2 ± 3.4 0.7
P plat (cmH2O) (mean ± SD) 25.9 ± 6.1 27.7 ± 6.8 0.3
qsComp (mL.cmH2O-1) (mean ± SD) 33.8 ± 13.6 29.8 ± 10.9 0.2
MV (L/min) (mean ± SD) 9.5 ± 2.2 9.3 ± 2.6 0.7
TV (mL/Kg PBW) (median (IQR)) 6.00 (6.00 to 6.20) 6.00 (6.00 to 6.05) 0.2
HR (beats/min) (mean ± SD) 105 ± 27 113 ± 25 0.3
MAP (mmHg) (mean ± SD) 74 ± 17 68 ± 14 0.2
Arterial pH (median (IQR)) 7.34 (7.28 to 7.43) 7.26 (7.18 to 7.35) 0.01
Vasopressor (μg.kg-1.minute-1) (median (IQR)) 0.22 (0.08 to 0.50) 0.36 (0.15 to 0.88) 0.2
  1. FiO2, fraction of the inspired oxygen; HR, heart rate; MAP, mean arterial pressure; vasopressor was norepinephrine or epinephrine; MV, minute ventilation; PaCO2, partial pressure of carbon dioxide; PaO2/FiO2, ratio of the partial pressure of arterial oxygen and the fraction of the inspired oxygen; PBW, predicted body weight; PEEP, positive end-expiratory pressure; Pplat, plateau pressure; qsComp, quasi-static respiratory compliance; TV, tidal volume.
  2. Results are expressed as mean ± SD, or median (IQR) as appropriate.