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Table 2 Respiratory mechanics

From: Respiratory mechanics and lung stress/strain in children with acute respiratory distress syndrome

  PEEP (cmH2O) p value
4 12 Pathology PEEP V T
V T
8 10 12 8 10 12
Airway plateau pressure (cmH2O) <0.001 <0.001 <0.001
 ARDS patients 18.6 ± 3.6 21.7 ± 4.3 23.4 ± 3.3 26.5 ± 2.7 29.2 ± 2.7 31.9 ± 2.6    
 Control patients 13.3 ± 2.1 14.7 ± 2.7 16.0 ± 3.1 21.2 ± 2.3 22.7 ± 2.6 24.3 ± 3.3    
Respiratory system compliance (ml/cmH2O) <0.001 0.36 0.40
 ARDS patients 9.6 ± 4.6 9.9 ± 5.6 10.2 ± 4.4 9.0 ± 4.0 9.4 ± 4.2 9.6 ± 4.2    
 Control patients 16.5 ± 3.4 17.9 ± 4.8 19.0 ± 6.9 16.0 ± 3.6 17.1 ± 4.3 17.6 ± 4.5    
Lung compliance (ml/cmH2O) <0.001 0.56 0.43
 ARDS patients 11.5 ± 6.0 11.6 ± 5.5 12.0 ± 5.5 10.2 ± 4.5 10.9 ± 5.1 11.3 ± 4.9    
 Control patients 21.8 ± 4.6 23.8 ± 6.2 25.5 ± 8.0 22.4 ± 6.0 23.4 ± 8.3 24.2 ± 7.9    
Chest wall compliance (ml/cmH2O) 0.49 0.60 0.63
 ARDS patients 76.3 ± 29.6 79.2 ± 35.0 74.5 ± 26.3 122.6 ± 113.0 81.4 ± 30.3 73.8 ± 52.1    
 Control patients 99.5 ± 99.1 85.6 ± 55.8 98.2 ± 69.1 85.5 ± 61.6 90.1 ± 55.9 94.4 ± 69.1    
End-expiratory lung volume (ml) <0.001 <0.001 0.97
 ARDS patients 211.0 ± 116.1 216.5 ± 115.2 216.7 ± 117.7 346.2 ± 177.6 361.2 ± 185.6 374.2 ± 183.9    
 Control patients 386.2 ± 156.6 384.7 ± 151.7 386.9 ± 156.4 619.2 ± 230.2 623.1 ± 219.9 622.1 ± 207.2    
  1. ARDS acute respiratory distress syndrome
  2. Values are mean ± SD. Two statistical analyses are reported: a three-way analysis of variance to test the effects of the presence of the disease, the level of PEEP and the level of VT/IBW and a post hoc Bonferroni’s test analysis for the comparison between subgroups