Table 2: Pulmonary function tests in RA-ILD and RA-no ILD.

% of predictedRA-ILD ( )RA-no ILD ( ) value

FEV174.1 ± 14.688.0 ± 12.9 <0.001
FVC74.9 ± 12.286.9 ± 11.3<0.001
TLC87.7 ± 15.798.4 ± 11.30.001
DLCO68.1 ± 19.596.2 ± 17.7<0.001