Arthritis & Rheumatism, Volume 62,
November 2010 Abstract Supplement

Abstracts of the American College of
Rheumatology/Association of Rheumatology Health Professionals
Annual Scientific Meeting
Atlanta, Georgia November 6-11, 2010.


The Revised Version of the Fibromyalgia Impact Questionnaire: Association with Physical Function and Quality of Life.

Seo1,  Seong-Rye, Lee3,  Sung-Ji, Kim3,  Tae-Jong, Park3,  Yong-Wook, Lee2,  Shin-Seok

Chonnam Natl Univ Med School, Gwangju, Republic of Korea
Chonnam Natl Univ Med School, Gwangju, Korea, Republic of
Chonnam Natl Univ Med School

Purpose:

Despite its shortcomings, the Fibromyalgia Impact Questionnaire (FIQ) is widely used to assess clinical symptoms and measure therapeutic changes in patients with fibromyalgia (FM). Recently, the updated version (FIQR) was released. In this study, we validated the Korean version of the FIQR and evaluated whether the revised version is superior to the original one in reflecting the physical function and quality of life of these patients.

Methods:

After translating the FIQR into Korean, the FIQR was administered to 50 FM patients to assess its comprehensibility. Next, 76 patients who met the American College of Rheumatology (ACR) criteria for FM were invited to complete a questionnaire that included the original FIQ, FIQR, Multidimensional Health Assessment Questionnaire (MDHAQ), Rheumatology Attitudes Index (RAI), and Medical Outcome Study Short-Form 36 (SF-36) and were examined for tender points using thumb palpation.

Results:

The test-retest reliability was assessed in 53 patients after 1 week, and the correlation coefficients were between 0.604 and 0.825 (Cronbach's alpha = 0.961). The total score on the FIQR was closely correlated with that on the original FIQ (r= 0.869, p < 0.001), and each of the three FIQR domains was also significantly correlated with the three related FIQ domains (all p < 0.001). The FIQR was significantly correlated with tender point counts and scores, pain visual analogue scale (VAS), fatigue VAS, RAI, MDHAQ, and the physical and mental component summary scores of the SF-36 (all p < 0.001). The FIQR was more strongly associated with the MDHAQ and SF-36 than with the original FIQ.

Table. Comparison of FIQR and FIQ with symptoms, physical function, and quality of life.

 PainFatigueMDHAQSF-36
    Physical componentMental component
FIQR     
  1) Function0.634***0.635***0.789***-0.527***-0.462***
  2) Impact0.666***0.637***0.656***-0.563***-0.418***
  3) Symptom0.665***0.733***0.568***-0.385***-0.501***
  Total scores0.724***0.755***0.736***-0.523***-0.502***
FIQ     
  1) Function0.457***0.420***0.611***-0.488***-0.168***
  2) Impact0.677***0.608***0.613***-0.534***-0.410***
  3) Symptom0.646***0.676***0.515***-0.282***-0.517***
  total scores0.713***0.714***0.612***-0.426***-0.498***
*p < 0.05, **p < 0.01, ***p < 0.001.

Conclusion:

Our study showed that the updated FIQR is a reliable, valid instrument for assessing FM patients and performs better at predicting physical function and health status than does the original FIQ.

To cite this abstract, please use the following information:
Seo, Seong-Rye, Lee, Sung-Ji, Kim, Tae-Jong, Park, Yong-Wook, Lee, Shin-Seok; The Revised Version of the Fibromyalgia Impact Questionnaire: Association with Physical Function and Quality of Life. [abstract]. Arthritis Rheum 2010;62 Suppl 10 :116
DOI: 10.1002/art.27885

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