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Table 4 Pulmonary function test results at six months

From: Association between inhaled nitric oxide treatment and long-term pulmonary function in survivors of acute respiratory distress syndrome

Parameter Statistics Placebo Inhaled NO P Value
FEV1, L N 41 51  
  Mean ± SD 2.29 ± 0.71 2.64 ± 0.91 0.1161
FEV1, % predicted N 41 50  
  Mean ± SD 69.51 ± 28.97 80.23 ± 21.21 0.042
FEV1/FVC, % N 40 51  
  Mean ± SD 72.89 ± 20.20 77.45 ± 15.19 0.155
FEV1/FVC, % predicted N 37 49  
  Mean ± SD 87.92 ± 19.77 96.14 ± 13.79 0.033
FVC, L N 41 51  
  Mean ± SD 3.01 ± 0.96 3.36 ± 1.09 0.163
FVC, % predicted N 41 50  
  Mean ± SD 69.84 ± 27.40 83.78 ± 19.38 0.019
FEF25-75%, L/sec N 41 51  
  Mean ± SD 12.25 ± 55.86 26.34 ± 84.50 0.121
FEF25-75%, % predicted N 41 50  
  Mean ± SD 62.96 ± 36.26 72.50 ± 27.71 0.154
FRC, L N 33 44  
  Mean ± SD 2.64 ± 0.71 3.00 ± 0.94 0.113
FRC, % predicted N 32 43  
  Mean ± SD 78.19 ± 29.95 93.98 ± 25.55 0.109
TLC, L N 32 44  
  Mean ± SD 4.81 ± 1.00 5.54 ± 1.42 0.026
TLC, % predicted N 31 43  
  Mean ± SD 76.10 ± 21.84 93.33 ± 18.21 < 0.001
CO diffusion, mL/min/mm Hg N 33 42  
  Mean ± SD 17.87 ± 6.37 18.25 ± 6.77 0.709
CO diffusion, % predicted N 32 42  
  Mean ± SD 65.96 ± 23.23 71.02 ± 20.79 0.492
  1. FEF, forced expiratory flow; FEV1, forced expiratory volume in 1 second; FRC, functional residual capacity; FVC, forced vital capacity; N, number; NO, nitric oxide; TLC, total lung capacity.