Fig. 2From: The effect of delaying initiation with umeclidinium/vilanterol in patients with COPD: an observational administrative claims database analysis using marginal structural modelsPatient disposition. COPD, chronic obstructive pulmonary disease; LABA, long-acting β2-agonist; LAMA, long-acting muscarinic antagonist; ORD, Optum Research Database; UMEC/VI, umeclidinium/vilanterolBack to article page