Inhaler Technique and Adherence to Inhaled Medications among Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease in Vietnam

Chau Quy Ngo, Dung Minh Phan, Giap Van Vu, Phu Ngoc Dao, Phuong Thu Phan, Hanh Thi Chu, Long Hoang Nguyen, Giang Thu Vu, Giang Hai Ha, Tung Hoang Tran, Bach Xuan Tran, Carl A. Latkin, Cyrus S. H. Ho and Roger C. M. Ho
Additional contact information
Chau Quy Ngo: Department of Internal Medicine, Hanoi Medical University, Hanoi 100000, Vietnam
Dung Minh Phan: Department of Internal Medicine, Hanoi Medical University, Hanoi 100000, Vietnam
Giap Van Vu: Department of Internal Medicine, Hanoi Medical University, Hanoi 100000, Vietnam
Phu Ngoc Dao: Department of Internal Medicine, Hanoi Medical University, Hanoi 100000, Vietnam
Phuong Thu Phan: Department of Internal Medicine, Hanoi Medical University, Hanoi 100000, Vietnam
Hanh Thi Chu: Respiratory Center, Bach Mai Hospital, Hanoi 100000, Vietnam
Long Hoang Nguyen: Center of Excellence in Behavioral Medicine, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam
Giang Thu Vu: Center of Excellence in Evidence-Based Medicine, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam
Giang Hai Ha: Institute for Global Health Innovations, Duy Tan University, Da Nang 55000, Vietnam
Tung Hoang Tran: Department of Lower Limb Surgery, Vietnam-Germany Hospital, Hanoi 100000, Vietnam
Bach Xuan Tran: Institute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi 100000, Vietnam
Carl A. Latkin: Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, MD 21205, USA
Cyrus S. H. Ho: Department of Psychological Medicine, National University Hospital, Singapore 119074, Singapore
Roger C. M. Ho: Center of Excellence in Behavioral Medicine, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam

IJERPH, 2019, vol. 16, issue 2, 1-8

Abstract: Sub-optimal chronic obstructive pulmonary disease (COPD) management has been found largely due to patients’ medication non-adherence and incorrect inhaler technique. This study aimed to examine inhaler use technique and medication adherence among Vietnamese COPD patients as well as potential associated factors. A cross-sectional study involving 70 COPD exacerbators was conducted. Inhaler technique and adherence were evaluated by the 10-item and 12-item Test of Adherence to Inhaler (TAI). Data on the history of COPD, home prescription of inhalers and duration of hospitalization were also collected. Generalized linear regression models were used to determine the associated factors with inhaler use and medication adherence. The results showed that the proportion of patients with good inhaler technique was 22.7% for metered-dose inhalers (MDI), 30.4% for dry powder inhalers (DPI) and 31.8% for soft-mist inhalers (SMI). Full exhalation was the most common mistake. The rates of non-compliance patterns were: “ignorant” (77.1%), “sporadic” (58.6%), and “deliberate” (55.7%). Worse dyspnea, greater health condition impairment, and an increased frequency of exacerbations and hospitalizations were found to be associated negatively with correct inhaler use and treatment adherence. Instructions to COPD patients about using inhalers should focus on correct inhaler technique and adherence even when feeling healthy.

Keywords: COPD; inhaler technique; adherence; TAI; Vietnam (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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