Fig. 3

Comparison of lung function between the two groups of patients before and after treatment. A Change from baseline in FEV₁ over 12 months; B change from baseline in FEV₁(%, predicted); C change from baseline in FVC over 12 months. Mean values are shown for all subjects for whom data were available at the given timepoints, error bars are 95% CI. *P < 0.05 compared with the baseline. FEV₁, the first–second forced expiratory volume; FVC, forced vital capacity