Purpose: Adherence to inhalation therapy is a critical determinant of the success of chronic
obstructive pulmonary disease (COPD) management. However, in practice, nonadherence to
inhalation therapy is very common in COPD patients. The effects of adherence to inhalation
therapy in COPD have not been fully studied, and less is known about the relationship between
medication adherence and quality of life in COPD. Our aim is to assess the factors that contribute
to adherence to inhalation therapy and examine their correlation with quality of life.