Rheumatol Int (2014) 34:175–180 DOI 10.1007/s00296-013-2929-3
ORIGINAL ARTICLE
The validity and reliability of the Persian version of the Revised Fibromyalgia Impact Questionnaire Banafsheh Ghavidel Parsa · Alireza Amir Maafi · Afrooz Haghdoost · Yasaman Arabi · Monire Khojamli · Gelayol Chatrnour · Ali Bidari
Received: 29 August 2013 / Accepted: 17 December 2013 / Published online: 1 January 2014 © Springer-Verlag Berlin Heidelberg 2013
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 intraclass correlation coefficient. Construct validity was evaluated by Spearman’s correlation coefficient and Pearson’s correlation coefficient. Statistical analysis was performed
Electronic supplementary material The online version of this article (doi:10.1007/s00296-013-2929-3) contains supplementary material, which is available to authorized users. B. Ghavidel Parsa Rheumatology Research Center, Razi Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran A. Amir Maafi (*) · A. Haghdoost · Y. Arabi · M. Khojamli · G. Chatrnour Student Research Committee, Guilan University of Medical Sciences, Rasht, Iran e-mail: [email protected] A. Bidari Department of Rheumatology, Iran University of Medical Sciences, Tehran, Iran
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
ORIGINAL ARTICLE
The validity and reliability of the Persian version of the Revised Fibromyalgia Impact Questionnaire Banafsheh Ghavidel Parsa · Alireza Amir Maafi · Afrooz Haghdoost · Yasaman Arabi · Monire Khojamli · Gelayol Chatrnour · Ali Bidari
Received: 29 August 2013 / Accepted: 17 December 2013 / Published online: 1 January 2014 © Springer-Verlag Berlin Heidelberg 2013
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 intraclass correlation coefficient. Construct validity was evaluated by Spearman’s correlation coefficient and Pearson’s correlation coefficient. Statistical analysis was performed
Electronic supplementary material The online version of this article (doi:10.1007/s00296-013-2929-3) contains supplementary material, which is available to authorized users. B. Ghavidel Parsa Rheumatology Research Center, Razi Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran A. Amir Maafi (*) · A. Haghdoost · Y. Arabi · M. Khojamli · G. Chatrnour Student Research Committee, Guilan University of Medical Sciences, Rasht, Iran e-mail: [email protected] A. Bidari Department of Rheumatology, Iran University of Medical Sciences, Tehran, Iran
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
