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Table 1 Matching criteria at baseline between the non-invasive positive pressure ventilation (NPPV) and the conventional mechanical ventilation (CMV) groups

From: Early fiberoptic bronchoscopy during non-invasive ventilation in patients with decompensated chronic obstructive pulmonary disease due to community-acquired-pneumonia

  NPPV (n = 15) CMV (n = 15) P
pH, mean (SD) 7.27 (0.02) 7.27 (0.03) 0.858
PaO2/FiO2, mean (SD) 163 (60) 165 (13) 0.910
PaCO2 mmHg, mean (SD) 76 (7) 78 (13) 0.596
APACHE III score, mean (SD) 71 (9) 73 (6) 0.396
Kelly-Matthay score, mean (SD) 3.4 (1.2) 3.2 (1.0) 0.633
CAP, n involved lobes, median (IQR) 2 (1-2) 1 (1-2) 0.486
CURB-65 score, median (IQR) 3 (2-4) 3 (2-3) 0.806
  1. APACHE, acute physiology and chronic health evaluation; CAP, community-acquired pneumonia; CURB-65, confusion, urea, respiratory rate, blood pressure, age 65 or over; FiO2, fraction of inspired oxygen; IQR, interquartile range; PaCO2, partial pressure of arterial carbon dioxide; PaO2, partial pressure of arterial oxygen; SD, standard deviation.