Psychometric properties of the Fibromyalgia Assessment Status (FAS) index: A national web-based study of fibromyalgia

C. Iannuccelli, P. Sarzi-Puttini, F. Atzeni, M. Cazzola, M. Di Franco, M. P. Guzzo, L. Bazzichi, G. Cassisi, A. Marsico, S. Stisi, F. Salaffi

Research output: Contribution to journalArticle

Abstract

Fibromyalgia (FM) is a generalised chronic pain condition that is often accompanied by symptoms such as fatigue, sleep disturbances, psychological and cognitive alterations, headache, migraine, variable bowel habits, diffuse abdominal pain, and urinary frequency. Its key assessment domains include pain, fatigue, disturbed sleep, physical and emotional functioning, and patient global satisfaction and health-related quality of life (HRQL). A number of evaluation measures have been adapted from the fields of rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis, and others such as the Fibromyalgia Assessment Status (FAS) index and the Fibromyalgia Impact Questionnaire (FIQ) have been specifically developed. The aim of this study was to assess the impact of FM on HRQL by comparing the performance of the FAS index, the FIQ and the Health Assessment Questionnaire [HAQ] in 541 female and 31 male FM patients (mean age 50 years; mean disease duration 7.7 years) entered in the database of a web-based survey registry developed by the Italian Fibromyalgia Network (IFINET). Tests of convergent validity showed that the FAS index and FIQ significantly correlated with each other (rho=0.608, p

Original languageEnglish
JournalClinical and Experimental Rheumatology
Volume29
Issue number6 SUPPL. 69
Publication statusPublished - 2011

Keywords

  • Fibromyalgia
  • Fibromyalgia Assessment Status (FAS)
  • Fibromyalgia Impact Questionnaire (FIQ)
  • Health-related quality of life (HRQL)
  • Web-based national study

ASJC Scopus subject areas

  • Rheumatology
  • Immunology
  • Immunology and Allergy

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    Iannuccelli, C., Sarzi-Puttini, P., Atzeni, F., Cazzola, M., Di Franco, M., Guzzo, M. P., Bazzichi, L., Cassisi, G., Marsico, A., Stisi, S., & Salaffi, F. (2011). Psychometric properties of the Fibromyalgia Assessment Status (FAS) index: A national web-based study of fibromyalgia. Clinical and Experimental Rheumatology, 29(6 SUPPL. 69).