Back to Journals » International Journal of Chronic Obstructive Pulmonary Disease » Volume 6

Relationships between repeated instruction on inhalation therapy, medication adherence, and health status in chronic obstructive pulmonary disease

Authors Takemura M, Mitsui K, Itotani R, Ishitoko M, Suzuki S, Matsumoto M, Aihara K, Oguma T, Ueda T, Kagioka H, Fukui M

Published 20 January 2011 Volume 2011:6 Pages 97—104

DOI https://doi.org/10.2147/COPD.S16173

Review by Single-blind

Peer reviewer comments 2


Masaya Takemura1, Katsumi Mitsui2, Ryo Itotani1, Manabu Ishitoko1, Shinko Suzuki1, Masataka Matsumoto1, Kensaku Aihara1, Tsuyoshi Oguma1, Tetsuya Ueda1, Hitoshi Kagioka1, Motonari Fukui1
1Division of Respiratory Medicine, 2Division of Pharmacy, Tazuke Kofukai, Medical Research Institute, Kitano Hospital, Osaka, Japan

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.
Patients and methods: A cross-sectional analysis of 88 COPD patients was performed using a self-reported adherence questionnaire with responses on a 5-point Likert scale.
Results: Of the 88 patients who were potential participants, 55 (63%) responded with usable information. The only significant factor associated with the overall mean adherence score was receiving repeated instruction about inhalation techniques (P = 0.032). Of the 55 respondents, 22 (40.0%) were given repeated verbal instruction and/or demonstrations of inhalation technique by a respiratory physician. Significant correlations were found between the overall mean adherence score and the health-related quality of life score (St George’s Respiratory Questionnaire: total, r = −0.35, P = 0.023; symptoms, r = −0.43, P = 0.002; impacts, r = −0.35, P = 0.011). Furthermore, patients with repeated instruction showed better quality of life scores than those who did not receive instruction (total, P = 0.030; symptoms, P = 0.038; impacts, P = 0.019).
Conclusions: Repeated instruction for inhalation techniques may contribute to adherence to therapeutic regimens, which relates to better health status in COPD.

Keywords: COPD, adherence, quality of life, repeated instruction

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]