Table 4: Pulmonary function test between PM and DM associated ILD patients.

 

PM-ILD (n = 22)

DM-ILD (n = 19)

p-value

FVC

1.83 (1.19-2.68)

2.23 (1.55-3.48)

0.321

%FVC

71.4 (60.7-80.5)

78.3 (62.5-100.6)

0.428

FEV1

1.56 (1.06-2.25)

1.97 (1.31-3.2 )

0.246

TLC

3.87 (3.24-4.73 )

3.89 (3.15-5.69 )

0.975

%TLC

84.6 (75-90.1 )

90.9 (81-106.8 )

0.392

DLco

12.9 (8.6-19.8 )

18.6 (11.4-39.3 )

0.543

%DLco

65.6 (41.8-95.6 )

94.8(48.8-192.3)

0.511

 

Values are expressed ad range.

Definition of Abbreviations: PM = Polymyositis; DM = Dermatomyositis; ILD = Interstitial Lung Disease; FVC = Forced Vital Capacity; %FVC = Percent Predicted Forced Vital Capacity; FEV1: = Forced Expiratory Volume in 1 second; TLC = Total Lung Capacity; %TLC = Percent Predicted Total Lung Capacity; DLco = Diffusing Capacity or Transfer Factor of the Lung for Carbon Monoxide; %DLco = Percent Predicted Diffusing Capacity or Transfer Factor of the Lung for Carbon Monoxide