Table 2.

Pulmonary function tests in RA-ILD and RA-no ILD.

% of predicted	RA-ILD (n = 47)	RA-no ILD (n = 36)	P value
FEV1	74.1 ± 14.6	88.0 ± 12.9	<0.001
FVC	74.9 ± 12.2	86.9 ± 11.3	<0.001
TLC	87.7 ± 15.7	98.4 ± 11.3	0.001
DLCO	68.1 ± 19.5	96.2 ± 17.7	<0.001