Table 3.

Correlation between baseline clinical variables and pulmonary function response to 3 months of treatment with salmeterol/fluticasone

R, correlation coefficient; FEV₁, forced expiratory volume in 1 sec; FVC, forced vital capacity; TLC, total lung capacity; VC, vital capacity; IC, inspiratory capacity; FRC, functional residual capacity; RV, residual volume; D_Lco, diffusing capacity for carbon monoxide; Low attenuation area, volume fraction of the lung below -950 HU at full inspiration computed tomography; Wall area, wall area/(wall area + lumen area) × 100 on computed tomography.