The use of multiple respiratory inhalers requiring different inhalation techniques has an adverse effect on COPD outcomes [Corrigendum]

Figures & data

Figure 2 Effect of similar versus mixed devices on primary and secondary COPD outcomes.

Notes: aIRR adjusted by antibiotic course, asthma diagnosis and paracetamol use. OR adjusted by baseline SABA and osteoporosis.
Abbreviations: CI, confidence interval; SABA, short-acting beta agonist.