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Inhaled medication used in the GOLD 2018 A–D groups.
Notes: CAT (missing n=53); mMRC (missing n=50).
Abbreviations: CAT, COPD Assessment Test; ICS, inhaled corticosteroid; LABA, long-acting beta agonist; LAMA, long-acting muscarinic antagonist; mMRC, modified Medical Research Council Dyspnea Scale; SABA, short-acting beta agonist; SAMA, short-acting muscarinic antagonist.
