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Table 8 Correlation of maximal extent score with pulmonary function (spirometry)

From: Systemic sclerosis: correlation between lung abnormalities on high-resolution computed tomography (HRCT) and pulmonary function tests (PFTs)

 Maximal extent score
 rP value
Pred (FVC)− 0.5400.002
Best (FVC)-0.3140.091
% (B/P) (FVC)0.0490.799
Pred (FEV1)-0.5250.003
Best (FEV1)-0.4300.018
% (B/P) (FEV1)-0.1680.375
Pred (FEV1 % FVC)-0.1200.529
Best (FEV1 % FVC)-0.3320.073
% (B/P) (FEV1 % FVC)-0.3310.074
  1. r Pearson correlation coefficient