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. 2017 Feb 24;12:745–755. doi: 10.2147/COPD.S119032

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© 2017 Kerwin et al. This work is published and licensed by Dove Medical Press Limited

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Serial LS mean change (95% CI) from baseline in FEV₁ over 0–3 h on Day 1 (A) and Day 84 (B; ITT population).

Abbreviations: CI, confidence interval; FEV₁, forced expiratory volume in 1 s; ITT, intent-to-treat; LS, least squares; TIO, tiotropium; UMEC, umeclidinium; VI, vilanterol.