Validation of the Arabic version of the general medication adherence scale in patients with type 2 diabetes mellitus in Jordan

Frontiers in Pharmacology

Pharmacology

Faris El-Dahiyat¹  Qais Alefan²  Md. Ashraful Islam³  Atta Abbas Naqvi⁴  Ahmed Nouri⁵ 

[1] Clinical Pharmacy Program, College of Pharmacy, Al Ain University, Al Ain, United Arab Emirates;Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan;Department of Pharmacy Practice, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;Department of Pharmacy Practice, School of Pharmacy, University of Reading, Whiteknights Campus, Reading, United Kingdom;Medical Faculty, Institute of Anatomy II, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany;

关键词: validation studies;    patient compliance;    medication adherence;    diabetes;    Jordan;   

DOI  :  10.3389/fphar.2023.1194672

 received in 2023-03-27, accepted in 2023-09-04,  发布年份 2023

来源: Frontiers

【 摘 要 】

Background: Medication adherence is a major challenge for patients with diabetes. Adherence rates are often low, and this can lead to poor glycaemic control and increased risk of complications. There are a number of tools available to measure medication adherence, but few have been validated in Arabic-speaking populations.Aim: This study aimed to validate the Arabic version of the General Medication Adherence Scale in patients with type 2 diabetes in Jordan.Methods: A cross-sectional study was conducted for 3 months among patients attending diabetes mellitus outpatient clinic in Irbid, Jordan. The validation procedure included confirmatory factor analysis (CFA) and equation modelling (SEM). Fit indices, namely, goodness of fit index (GFI), Tucker Lewis index (TLI), comparative fit index (CFI), and root mean square error of approximation (RMSEA) were observed. Corrected item-total correlation (ITC) was reported. Reliability was assessed using Cronbach’s alpha (α) and α value based on item deletion was also carried out. Intraclass correlation coefficient (ICC) was reported. Data were analyzed using IBM SPSS v23 and IBM AMOS v25.Results: Data from 119 participants were gathered. The mean adherence score was 27.5 (±6) ranging from 6 to 33. More than half of the patients were adherent to their therapy (n = 79, 66.4%). The reliability of the scale (n = 11) was 0.907, and ICC ranged from 0.880—0.930: 95% CI. The following values were observed in CFA; χ2 = 62.158, df = 41, χ2/df = 1.516, GFI = 0.913, AGFI = 0.860, TLI = 0.960, CFI = 0.971 and RMSEA = 0.066. A total of 10 out of 11 items had corrected ITC >0.5. The α remained between 0.89–0.92 during item deletion.Conclusion: The results obtained in this study suggest that the scale is valid and reliable in measuring adherence to medications in the studied sample of patients with diabetes. This scale can be used by clinicians in Jordan to assess adherence and may further aide in evaluating interventions to improve adherence rates in persons with type 2 diabetes.

【 授权许可】

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Copyright © 2023 Islam, El-Dahiyat, Nouri, Alefan and Naqvi.