Fig. 2From: Improving the evaluation of COPD exacerbation treatment effects by accounting for early treatment discontinuations: a post-hoc analysis of randomized clinical trialsKaplan-Meier curves for time to early treatment discontinuation for each treatment arm in datasets A-E. The hazard ratio (HR, from a proportional hazards model) is given for the relevant comparisons in each dataset. BUD - budesonide, FM - formoterol, PBO - placebo, RFL - roflumilast, SOC - standard of careBack to article page