Validation of the Fibromyalgia Survey Questionnaire within a Cross-Sectional Survey

Winfried Häuser, Eva Jung, Brigitte Erbslöh-Möller, Mechthild Gesmann, Hedi Kühn-Becker, Franz Petermann, Jost Langhorst, Thomas Weiss, Andreas Winkelmann and Frederick Wolfe

PLOS ONE, 2012, vol. 7, issue 5, 1-6

Abstract: The Fibromyalgia Survey Questionnaire (FSQ) assesses the key symptoms of fibromyalgia syndrome. The FSQ can be administrated in survey research and settings where the use of interviews to evaluate the number of pain sites and extent of somatic symptom intensity and tender point examination would be difficult. We validated the FSQ in a cross-sectional survey with FMS patients. In a cross-sectional survey, participants with physician diagnosis of FMS were recruited by FMS-self help organisations and nine clinical institutions of different levels of care. Participants answered the FSQ (composed by the Widespread Pain Index [WPI] and the Somatic Severity Score [SSS]) assessing the Fibromyalgia Survey Diagnostic Criteria (FSDC) and the Patient Health Questionnaire PHQ 4. American College of Rheumatology 1990 classification criteria were assessed in a subgroup of participants. 1,651 persons diagnosed with FMS were included into analysis. The acceptance of the FSQ-items ranged between 78.9 to 98.1% completed items. The internal consistency of the items of the SSS ranged between 0.75–0.82. 85.5% of the study participants met the FSDC. The concordance rate of the FSDC and ACR 1990 criteria was 72.7% in a subsample of 128 patients. The Pearson correlation of the SSS with the PHQ 4 depression score was 0.52 (p

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0037504

DOI: 10.1371/journal.pone.0037504

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