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A Persian Adaptation of Medication Adherence Self-Efficacy Scale (MASES) in Hypertensive Patients: Psychometric Properties and Factor Structure

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Abstract

Introduction

Poor adherence to anti-hypertensive treatment significantly contributes to the failure to achieve well-controlled blood pressure in patients with hypertension.

Aim

To convert the original English version of Medication Adherence Self-efficacy Scale (MASES) into a Persian version for clinical application in hypertensive patients.

Methods

The backward–forward translation method was used to produce the Persian version of the questionnaire. Then the internal consistency was assessed using Cronbach’s alpha. Exploratory Factor Analysis was applied to extract the components of the questionnaire. Correlation between blood pressures and drug adherence was then determined using the Persian MASES in hypertensive patients.

Results

Cronbach’s alpha coefficient of the Persian version of MASES was >0.92, suggesting that it can yield consistent results. Exploratory Factor Analysis suggested an uni-dimensionality of the scale. Patients with uncontrolled hypertension showed poor adherence to hypertensive medications, therefore had significant lower self-efficacy scores than those with well-controlled blood pressure by medications.

Conclusion

The Persian version of MASES is valid and reliable to assess self-efficacy of antihypertensive medication adherence in hypertensive patient, which is helpful to improve medication compliance in such patients in order to achieve better blood pressure controls.

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Acknowledgments

The authors would like to thank the participants of the study for sharing their experiences with us. The authors would also like to thank Miss Mahdieh Pakpour for her constructive help for data collection.

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Authors and Affiliations

  1. Health Research Center, Baqiyatallah University of Medical Science, Tehran, Iran

    Mohsen Saffari

  2. Social Determinants of Health Research Center, Qazvin University of Medical Sciences, Shahid Bahonar Blvd, Qazvin, Iran

    Isa Mohammadi Zeidi & Amir H. Pakpour

  3. School of Health Sciences, Jönköping University, Jönköping, Sweden

    Bengt Fridlund

  4. School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia

    Hui Chen

Authors
  1. Mohsen Saffari
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  2. Isa Mohammadi Zeidi
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  3. Bengt Fridlund
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  4. Hui Chen
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  5. Amir H. Pakpour
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Correspondence to Amir H. Pakpour.

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Saffari, M., Zeidi, I.M., Fridlund, B. et al. A Persian Adaptation of Medication Adherence Self-Efficacy Scale (MASES) in Hypertensive Patients: Psychometric Properties and Factor Structure. High Blood Press Cardiovasc Prev 22, 247–255 (2015). https://doi.org/10.1007/s40292-015-0101-8

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