Sub-optimal chronic obstructive pulmonary disease (COPD) management has been found\nlargely due to patientsâ?? medication non-adherence and incorrect inhaler technique. This study aimed\nto examine inhaler use technique and medication adherence among Vietnamese COPD patients as\nwell as potential associated factors. A cross-sectional study involving 70 COPD exacerbators was\nconducted. Inhaler technique and adherence were evaluated by the 10-item and 12-item Test of\nAdherence to Inhaler (TAI). Data on the history of COPD, home prescription of inhalers and duration\nof hospitalization were also collected. Generalized linear regression models were used to determine\nthe associated factors with inhaler use and medication adherence. The results showed that the\nproportion of patients with good inhaler technique was 22.7% for metered-dose inhalers (MDI), 30.4%\nfor dry powder inhalers (DPI) and 31.8% for soft-mist inhalers (SMI). Full exhalation was the most\ncommon mistake. The rates of non-compliance patterns were: â??ignorantâ? (77.1%), â??sporadicâ? (58.6%),\nand â??deliberateâ? (55.7%). Worse dyspnea, greater health condition impairment, and an increased\nfrequency of exacerbations and hospitalizations were found to be associated negatively with correct\ninhaler use and treatment adherence. Instructions to COPD patients about using inhalers should\nfocus on correct inhaler technique and adherence even when feeling healthy.
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