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Table 1 Patient characteristics

From: Airway pressure morphology and respiratory muscle activity during end-inspiratory occlusions in pressure support ventilation

Patient characteristics, N = 40
 Male, N (%) 25 (62.5)
 Age (mean ± SD) 68 ± 13
 APACHE II (mean ± SD) 19 ± 7
Admission diagnosis, N (%)
 Acute respiratory failure 16 (40)
 Septic shock 10 (25)
 Multiple trauma 8 (20)
 Post cardiac arrest 2 (5)
 Others 4 (10)
Respiratory characteristics and ventilator settings
 ARDS, N (%) 36 (90)
 Days on MV before study, median (IQR) 11 (7–17)
 PEEP cmH2O, mean ± SD 7 ± 2
 PO2/FiO2 mean ± SD 235 ± 62
 Pressure support, cmH2O, mean ± SD 8 ± 3
 Tidal volume, L, mean ± SD 0.48 ± 0.08
 Respiratory rate, br/min, mean ± SD 23 ± 7
  1. APACHE II Acute Physiology and Chronic Health Evaluation II score, ARDS acute respiratory distress syndrome, MV mechanical ventilation, PEEP positive end-expiratory pressure, PO2/FiO2 partial pressure of arterial oxygen to inspired oxygen fraction ratio, SD standard deviation, IQR interquartile range