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Background: Inhaler using technique has influences on disease control in patients with bronchial asthma. The objective of this study was to assess the inhaler using technique and factors associated with correct technique among adult asthma patients in northern Bangladesh.Methods: A total 357 asthma patients were recruited from medicine outpatient department of Rajshahi Medical College Hospital (RMCH) from November 2020 to January 2021. All patients were stable and using either metered dose inhaler (MDI) with or without spacer or dry powder inhaler (DPI). Demographic and disease details were collected by direct interviewing of the patients and inhaler using technique were also observed. A preformed checklist was used for marking the activities of the patients. Inhaler using technique was defined as incorrect if there was one or more critical error observed during using the prescribed inhaler. Logistic regression model was used to determine the predictors of incorrect inhaler using technique. Results: Almost 77% of the MDI users, 85% of the MDI with spacer users, and 76% of the DPI users had at least one or more critical error in handling their inhaler devices. Most commonly missed critical steps were breathing in adequately during inhalation (40% in MDI and 39% in DPI users) and holding breath after inhalation (54% in MDI and 77% in DPI users). Patients with lower educational attainment (aOR 4.56, 95% CI 1.13-18.37, pConclusion: Majority of the asthma patients included in our study had one or more critical error in their inhaler using technique especially in patients with lack of inhaler using training. Patient counseling and demonstration of inhaler using technique during prescription might increase the proportion of patients practicing right technique of inhaler.

Background: Adherence to inhaler medication is an important contributor of optimum asthma control along with adequate pharmacotherapy. The objective of the present study was to assess self-reported adherence level and to identify the potential factors associated with non-adherence to the inhalers among asthma patients.Methods: This facility-based cross-sectional study was conducted in the medicine outpatient department of Rajshahi Medical College Hospital from November 2020 to January 2021. A total of 357 clinically confirmed adult asthma patients were interviewed. Inhaler adherence was measured using the 10-item Test of Adherence scale (TAI). . Both descriptive and inferential statistics was used to express the socio-demographic of the patients and predictors of poor adherence to inhaler. Results: A substantial number of participants were non-adherent (86%) to inhaler medication. Patient non-adherent to inhaler medication are often younger (23.15, 95% CI 3.67-146.08), lived in rural area ( 23.28, 95% CI 2.43-222.66), less year of schooling (5.69, 95% CI 1.27-25.44), and belonged to the middle income (aOR 9.74, 95% CI 2.11-44.9) than those adherent with inhaler. Presence of comorbidities (12.91, 95% CI 1.41-117.61), prolonged duration of inhaler intake (5.69, 95% CI 1.22-26.49), consulting non-qualified practitioners (13.09, 95% CI 3.10-55.26) were the significant contributor of non-adherence.Conclusion: Despite ongoing motivation and treatment, non-adherence to inhalation anti-asthmatic is high and several factors have been found contributed. Regular monitoring and a guided patient centered self-management approach might be helpful to address the in long run.