Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients
Abstract Patients suffering from chronic kidney failure ultimately need kidney replacement therapies, such as hemodialysis. Adherence to treatment in these patients can play a central role in improving health levels and feelings of well-being. The aim of this study was to determine the psychometric...
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Nature Portfolio
2024-11-01
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| Online Access: | https://doi.org/10.1038/s41598-024-80134-6 |
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| author | Hamid Sharif-Nia Victoria Alikari João Marôco Reza Fatehi Esmaeil Hoseinzadeh Poorya Nowrozi |
| author_facet | Hamid Sharif-Nia Victoria Alikari João Marôco Reza Fatehi Esmaeil Hoseinzadeh Poorya Nowrozi |
| author_sort | Hamid Sharif-Nia |
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| description | Abstract Patients suffering from chronic kidney failure ultimately need kidney replacement therapies, such as hemodialysis. Adherence to treatment in these patients can play a central role in improving health levels and feelings of well-being. The aim of this study was to determine the psychometric properties of the Persian version of the modified version of the Greek Simplified Medication Adherence Questionnaire in hemodialysis patients. In a methodological study carried out in 2024, a sample of 411 hemodialysis patients was selected using a convenience sampling method. The GR-SMAQ-HD utilized in the study was translated, and its psychometric properties were evaluated through assessments of construct validity, including exploratory and confirmatory factor analysis, convergent validity, and divergent validity. Furthermore, the study examined the internal consistency of the scale to ensure its reliability. The mean age of the participants was 59.37 (SD = 12.99) years. The results of the tetrachoric correlation matrix with Varimax with Kaiser Normalization rotation using the first random dataset (n = 205) extracted three factors accounting for 74.4% of the variance comprising 8 items. The results of CFA showed that the data fit the model. As for construct reliability, Cronbach’s alpha, CR, AIC, and MaxR for all constructs were greater than 0.7, demonstrating good internal consistency and construct reliability. In the overall population, the mean score for treatment Adherence was 5.61 (SD = 1.95, 95% CI 5.42, 5.80). Invariance analysis shows that the model has strong measurement invariance between sex ($ΔCFI= − 0.001, ΔRMSEA= − 0.004$). The findings affirm the appropriateness of employing the Persian iteration of the GR-SMAQ-HD as a dependable and valid instrument for assessing adherence to treatment in hemodialysis patients. GR-SMAQ-HD is crucial for ensuring that patients follow their prescribed treatment regimens effectively. |
| format | Article |
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| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-a0dfa72d537d4c47ac80a73803e35c382024-11-17T12:26:58ZengNature PortfolioScientific Reports2045-23222024-11-0114111010.1038/s41598-024-80134-6Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patientsHamid Sharif-Nia0Victoria Alikari1João Marôco2Reza Fatehi3Esmaeil Hoseinzadeh4Poorya Nowrozi5Psychosomatic Research Center, Mazandaran University of Medical SciencesDepartment of Nursing, University of West AtticaWilliam James Centre for Research ISPA – Instituto UniversitárioDepartment of Nursing, Behshahr Faculty of Nursing, Mazandaran University of Medical SciencesDepartment of Nursing, Faculty of Medical Sciences, Gorgan Branch, Islamic Azad UniversityStudent Research Committee, Mazandaran University of Medical SciencesAbstract Patients suffering from chronic kidney failure ultimately need kidney replacement therapies, such as hemodialysis. Adherence to treatment in these patients can play a central role in improving health levels and feelings of well-being. The aim of this study was to determine the psychometric properties of the Persian version of the modified version of the Greek Simplified Medication Adherence Questionnaire in hemodialysis patients. In a methodological study carried out in 2024, a sample of 411 hemodialysis patients was selected using a convenience sampling method. The GR-SMAQ-HD utilized in the study was translated, and its psychometric properties were evaluated through assessments of construct validity, including exploratory and confirmatory factor analysis, convergent validity, and divergent validity. Furthermore, the study examined the internal consistency of the scale to ensure its reliability. The mean age of the participants was 59.37 (SD = 12.99) years. The results of the tetrachoric correlation matrix with Varimax with Kaiser Normalization rotation using the first random dataset (n = 205) extracted three factors accounting for 74.4% of the variance comprising 8 items. The results of CFA showed that the data fit the model. As for construct reliability, Cronbach’s alpha, CR, AIC, and MaxR for all constructs were greater than 0.7, demonstrating good internal consistency and construct reliability. In the overall population, the mean score for treatment Adherence was 5.61 (SD = 1.95, 95% CI 5.42, 5.80). Invariance analysis shows that the model has strong measurement invariance between sex ($ΔCFI= − 0.001, ΔRMSEA= − 0.004$). The findings affirm the appropriateness of employing the Persian iteration of the GR-SMAQ-HD as a dependable and valid instrument for assessing adherence to treatment in hemodialysis patients. GR-SMAQ-HD is crucial for ensuring that patients follow their prescribed treatment regimens effectively.https://doi.org/10.1038/s41598-024-80134-6Treatment adherenceHemodialysisValidityReliabilityPsychometrics |
| spellingShingle | Hamid Sharif-Nia Victoria Alikari João Marôco Reza Fatehi Esmaeil Hoseinzadeh Poorya Nowrozi Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients Scientific Reports Treatment adherence Hemodialysis Validity Reliability Psychometrics |
| title | Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients |
| title_full | Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients |
| title_fullStr | Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients |
| title_full_unstemmed | Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients |
| title_short | Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patients |
| title_sort | psychometric properties of the greek simplified medication adherence questionnaire among iranian hemodialysis patients |
| topic | Treatment adherence Hemodialysis Validity Reliability Psychometrics |
| url | https://doi.org/10.1038/s41598-024-80134-6 |
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