Validation of the Arabic Version of General Medication Adherence Scale (GMAS) in Sudanese Patients with Diabetes Mellitus

The aim of this study was to validate the Arabic version of General Medication Adherence Scale (GMAS) in Sudanese patients with type 2 diabetes mellitus (T2DM). A 3-month cross-sectional study was conducted among patients with T2DM at Al-Daraja Health Center, located in Wad Medani, Sudan. A convenie...

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Bibliographic Details
Published in:Risk management and healthcare policy 2021-01, Vol.14, p.4235-4241
Main Authors: Mahmoud, Mansour Adam, Islam, Md Ashraful, Ahmed, Malaz, Bashir, Randa, Ibrahim, Romisa, Al-Nemiri, Shahd, Babiker, Ethar, Mutasim, Neven, Alolayan, Sultan Othman, Al Thagfan, Sultan, Ahmed, Samrein B M, Sales, Ibrahim, Hassali, Mohamed Azmi, Alahmadi, Yaser, Yousif, Mirghani A
Format: Article
Language:English
Subjects:
Ambulatory care
chronic illness
Chronic illnesses
Consent
Data collection
Diabetes
Expenditures
Hypertension
medication adherence
medication persistence
Original Research
Patient compliance
Questionnaires
sudan
Validation studies
Validity
Values
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Summary:The aim of this study was to validate the Arabic version of General Medication Adherence Scale (GMAS) in Sudanese patients with type 2 diabetes mellitus (T2DM). A 3-month cross-sectional study was conducted among patients with T2DM at Al-Daraja Health Center, located in Wad Medani, Sudan. A convenient sample of patients was selected, and the study sample size was calculated using the item response ratio. Factorial, known group, and construct validities were determined. Internal consistency and reliability were also determined. Responses were provided by 500 patients. The average medication adherence score was 30 (median 31). The normed fit index (NFI) was 0.950, the comparative fit index (CFI) was 0.963, the incremental fit index (IFI) was 0.963, and the root-mean-square error of approximation (RMSEA) was 0.071. The results from these fit indices indicated a good model. Factorial, known group and construct validities were all established. A significant association was found between adherence score and age (P = 0.03) since a larger proportion of older patients were found to have high adherence compared to patients in other age groups. The reliability (α) of the questionnaire was 0.834. The Arabic version of GMAS was validated in Sudanese patients with T2DM making it a suitable scale to be used in this population.
ISSN:1179-1594
1179-1594
DOI:10.2147/RMHP.S325184