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Rheumatology International

, Volume 34, Issue 2, pp 175–180 | Cite as

The validity and reliability of the Persian version of the Revised Fibromyalgia Impact Questionnaire

  • Banafsheh Ghavidel Parsa
  • Alireza Amir MaafiEmail author
  • Afrooz Haghdoost
  • Yasaman Arabi
  • Monire Khojamli
  • Gelayol Chatrnour
  • Ali Bidari
Original Article

Abstract

The Revised Fibromyalgia Impact Questionnaire (FIQR), an updated version of the Fibromyalgia Impact Questionnaire (FIQ) achieved a better balance among different domains (i.e., function, overall impact, and symptom severity) and attempts to address the limitations of FIQ. As there is no Persian version of the FIQR available, we aimed to investigate the validity and reliability of a Persian translation of the FIQR in Iranian patients. After translating the FIQR into Persian, it was administered to 77 female patients with fibromyalgia syndrome. All of the patients filled out the questionnaire together with a Persian version of the FIQ, short form-12 (SF-12). The tender-point count was also calculated. One week later, FM patients filled out the Persian FIQR at their second visit. Reliability was analyzed by internal consistency and reproducibility including Cronbach’s α coefficient and intra-class correlation coefficient. Construct validity was evaluated by Spearman’s correlation coefficient and Pearson’s correlation coefficient. Statistical analysis was performed using SPSS for Windows version 17.0. All patients included in this study were female, and the mean age was 38.23 ± 10.68 years. The total scores of the FIQR and FIQ were 49.77 ± 18.27 and 54.05 ± 14.00 that were closely correlated (r = 0.63, p < 0.01), and each of the three domains of the Persian FIQR was also correlated well with the three related FIQ domains (r = 0.36–0.63, p < 0.01). Also some significant inverse correlations of FIQR with quality-of-life (assessed by SF-12) domains and items were found. Cronbach’s α was 0.87 for FIQR in the first visit. The Persian FIQR showed adequate reliability and validity. This instrument can be used in the clinical evaluation of Iranian patients with fibromyalgia.

Keywords

Fibromyalgia Reliability Revised Fibromyalgia Impact Questionnaire Persian 

Notes

Acknowledgments

The authors thank Sara Goltash student of biological sciences from University of Toronto/Canada for her kind help in translation process of questionnaire also the colleges at the Student Research Committee, Guilan University of Medical Sciences, Rasht, Iran who were responsible for processing the database.

Conflict of interest

We declare that there is no conflict of interest.

Supplementary material

296_2013_2929_MOESM1_ESM.docx (25 kb)
Supplementary material 1 (DOCX 24 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Banafsheh Ghavidel Parsa
    • 1
  • Alireza Amir Maafi
    • 2
    Email author
  • Afrooz Haghdoost
    • 2
  • Yasaman Arabi
    • 2
  • Monire Khojamli
    • 2
  • Gelayol Chatrnour
    • 2
  • Ali Bidari
    • 3
  1. 1.Rheumatology Research Center, Razi Hospital, School of MedicineGuilan University of Medical SciencesRashtIran
  2. 2.Student Research CommitteeGuilan University of Medical SciencesRashtIran
  3. 3.Department of RheumatologyIran University of Medical SciencesTehranIran

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