Fig. 2.
Interaction plot of severity and time based on linear mixed model post-hoc analysis. Boxes indicate adjusted mean. Error bars show 95% confidence interval with Bonferroni correction. V1 (2 months), V2 (6 months) and V3 (12 months). Group 1: mild; group 2: moderate; group 3: severe. A Interaction plot: changes over time and severity in % of predicted DLCO. We found differences between mind and moderate [p = 0.001] or severe [p < 0.001] patients only at 2 months (V1). B Interaction plot: changes over time and severity in FVC% of predicted. No between-group differences were found at any time. C Interaction plot: changes over time and severity in dyspnea. No between-group differences were found at any time. FVC forced vital capacity, DLCO diffusing capacity of lungs for carbon monoxide