The Influence of Inhaler Technique, Exacerbation, Age, and Barrier to Receiving Care on Adherence to Inhaled Medications in Patients with COPD
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Abstract
Purpose: This study aimed to examine the influence of Inhaler technique, exacerbation, age, and barrier to receiving care on adherence to inhaled medications in patients with chronic obstructive pulmonary disease (COPD).
Design: Correlational predictive research design.
Methods: The study samples including 164 patients with COPD came for follow-up visits at COPD clinic of a tertiary hospital in Bangkok. Data collection was performed using demographic data questionnaire, Medication Adherence Report Scale, Inhaler technique, and barrier to receiving care. Data were analyzed using descriptive statistics and logistic regression analysis.
Main findings: The results showed that majority of participant (93.3%) were male with average age of 73.20 years (SD = 9.27); and 73.8% of the participants were adherent to inhaled medications. Inhaler technique, exacerbation, age, and barrier to receiving care together contributed for 23% of the variance explained in adherence to inhaled medications in patients with COPD. It was also found that correct inhaler technique, no exacerbation and age 70-79 years could predict adherence to inhaled medications in patients with COPD (OR = 2.93, 95%CI = 1.34, 6.43, p < .01; OR = 2.72, 95%CI = 1.23, 6.01, p < .01; and OR = .29, 95%CI = .12, .75, p < .01 respectively).
Conclusion and recommendations: Correct step of inhaled medication has a better chance to reach the small airways receptors which increases the medication's effectiveness. Nurses should regularly check the correctness of patients’ inhaler technique and provide information about benefit of adherence to inhaled medications in preventing exacerbation.
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