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. 2015 Dec 18;11:1–12. doi: 10.2147/COPD.S91407

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© 2016 Covelli et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

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Weekly rescue medication use.

Notes: (A) Mean weekly use of albuterol/salmeterol rescue medication in inhalations/day over the 12-week course of the study and (B) mean weekly percentage of rescue-free days over the 12-week course of the study. During Weeks 1–12, the LS mean change difference between groups was (A) −0.37 inhalations (95% CI −0.55 to −0.19) and (B) 9.1% (95% CI 4.0–14.2). Albuterol use was measured as occasions used/day.

Abbreviations: CI, confidence interval; FF/VI, fluticasone furoate/vilanterol (100/25 mcg); LS, least squares; TIO, tiotropium (18 mcg).