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Psychometric properties and osteoprotective behaviors among type 2 diabetic patients: osteoporosis self-efficacy scale Malay version (OSES-M)

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Abstract

Summary

In type 2 diabetic patients (T2DM), only 22 % have normal bone mineral density and almost three quarters of the sample population had low self-efficacy towards osteoporosis. These results reflect the need for screening and educational programs to increase the awareness of T2DM towards osteoporosis.

Introduction

Our aim was to translate and examine the psychometric properties of the Malay version of the osteoporosis self-efficacy scale (OSES-M) among T2DM and to determine the best cut-off value with optimum sensitivity and specificity. In addition, to assess factors that affects diabetic patients' osteoporosis self-efficacy.

Methods

A standard “forward-backward” procedure was used to translate the OSES into Malay language, which was then validated with a convenience sample of 250 T2DM. The sensitivity and specificity of the OSES-M was calculated using receiver operating characteristic curve analysis. Bivariate and multivariate approaches were used to examine multiple independent variables on each dependent variable.

Results

The mean score of OSES-M was 731.74 ± 197.15. Fleiss' kappa, content validity ratio range, and content validity index were 0.99, 0.75–1, and 0.96, respectively. Two factors were extracted from exploratory factor analysis and were confirmed through confirmatory factor analysis. Internal consistency and test–retest reliability were 0.92 and 0.86, respectively. The optimum cut-off point of OSES-M to predict osteoporosis/osteopenia was 858. Regression analysis revealed that knowledge, health belief, and some demographic data had an impact on OSES-M.

Conclusions

The results show that the OSES-M is a reliable and valid instrument for measuring osteoporosis self-efficacy in the Malaysian clinical setting.

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Acknowledgments

The authors wish to acknowledge and extend gratitude for Universiti Science Malaysia (USM) for its support in undertaking this work through the USM fellowship program.

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Authors and Affiliations

  1. Clinical Pharmacy Department, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia

    S. A. Abdulameer & S. A. Syed Sulaiman

  2. Social and Administrative Pharmacy Department, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia

    M. A. Hassali

  3. Diabetes out Patient Clinic, Penang General Hospital, 10900, Georgetown, Penang, Malaysia

    K. Subramaniam

  4. Pharmaceutical Technology Department, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia

    M. N. Sahib

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  1. S. A. Abdulameer
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  2. S. A. Syed Sulaiman
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  3. M. A. Hassali
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  4. K. Subramaniam
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  5. M. N. Sahib
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Correspondence to S. A. Abdulameer.

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Abdulameer, S.A., Syed Sulaiman, S.A., Hassali, M.A. et al. Psychometric properties and osteoprotective behaviors among type 2 diabetic patients: osteoporosis self-efficacy scale Malay version (OSES-M). Osteoporos Int 24, 929–940 (2013). https://doi.org/10.1007/s00198-012-2071-1

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  • DOI: https://doi.org/10.1007/s00198-012-2071-1

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