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Table 3 Demographic, ventilation and laboratory characteristics of the patients included in the different studies

From: Protective mechanical ventilation in the non-injured lung: review and meta-analysis

  Protective ventilation (n= 682) Standard ventilation (n= 680) p
Age, years 61 (8.4) 61 (7.7) 0.96
Weight, kg 77.5 (10.1) 77.2 (9.5) 0.82
Tidal volume, ml/kg 6.1 (0.63) 10.7 (1.2) 0.00
PEEP, cm H2O 7.6 (2.4) 2.5 (2.6) 0.00
Plateau pressure, cm H2O 17.2 (2.2) 19.9 (3.9) 0.03
Respiratory rate, breaths/min 16.7 (3.2) 10.1 (3.5) 0.00
PaO2/FiO2 331.6 (62.3) 332.5 (64.3) 0.94
PaCO2, mmHg 42.6 (5.5) 38.4 (4.8) 0.01
pH 7.37 (0.3) 7.40 (0) 0.01
  1. Results are shown as mean (±SD). FiO2: fraction of inspired oxygen; PEEP: positive end-expiratory pressure.