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Contribution of clinical variables to median COPD cost. + variable present; - variable not present CAD-coronary artery disease; HTN-hypertension; COPD-chronic obstructive pulmonary disease; SAMA-short acting anti-muscarinic agonist; LAMA-long acting anti-muscarinic agonist; LABA-long acting beta agonist; ICS-inhaled corticosteroid.
