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Validation of an Adapted Arabic Version of Fibromyalgia Syndrome Impact Questionnaire

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Abstract

Fibromyalgia (FM) is the most common chronic pain syndrome encountered in medical practice, affecting females more than males, and the estimated prevalence of FM in Egypt is 1.3 %. The aim was to translate and adapt the Fibromyalgia Impact Questionnaire (FIQ) into Arabic and assess reliability and validity. The Arabic version of Fibromyalgia Impact Questionnaire (FIQ-A) was adapted following the forward/backward translation approach. Fifty-one female patients with FM were studied to assess psychometric properties of the FIQ-A. Reliability was analyzed by the correlation coefficient between test and retest. Internal consistency was checked by the Cronbach’s alpha coefficient. Construct validity was assessed comparing FIQ-A with Health Assessment Questionnaire (HAQ), Health Assessment Questionnaire of Fibromyalgia (FHAQ), The Medical Outcome Survey Short-Form-36 (SF-36), and the Total Visual Analog Scale (TVAS) for FM symptom, and feasibility was assessed by the time taken in completing the FIQ-A and the proportion of patients completed the questionnaire. Patients studied were 33.2 ± 9.8 years old. Translation was concordant. Adaptation affected 4 sub-items of physical function. Test–retest correlation coefficient was 0.89 for total FIQ-A and Cronbach’s alpha was 0.76. Excellent to good statistically significant correlations (p < 0.05) were found between the FIQ-A items and HAQ, FHAQ, and SF-36. The FIQ-A is a reliable, valid for measuring health status and physical function in Arabic-speaking FM patients.

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Authors and Affiliations

  1. Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt

    Mai Abd El-Naby, Mohamed Ahmed Hefny & Magdy Ahmed Awadalla

  2. Community Medicine Department, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt

    Ayman Ekram Fahim

Authors
  1. Mai Abd El-Naby
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  2. Mohamed Ahmed Hefny
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  3. Ayman Ekram Fahim
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  4. Magdy Ahmed Awadalla
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Correspondence to Ayman Ekram Fahim.

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El-Naby, M.A., Hefny, M.A., Fahim, A.E. et al. Validation of an Adapted Arabic Version of Fibromyalgia Syndrome Impact Questionnaire. Rheumatol Int 33, 2561–2567 (2013). https://doi.org/10.1007/s00296-013-2779-z

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  • DOI: https://doi.org/10.1007/s00296-013-2779-z

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