Widespread Pain and Low Widespread Pain Index Scores among Fibromyalgia-positive Cases Assessed with the 2010/2011 Fibromyalgia Criteria.

Wolfe, Frederick; Egloff, Niklaus; Häuser, Winfried (2016). Widespread Pain and Low Widespread Pain Index Scores among Fibromyalgia-positive Cases Assessed with the 2010/2011 Fibromyalgia Criteria. The journal of rheumatology, 43(9), pp. 1743-1748. The Journal of Rheumatology Publishing Company Limited 10.3899/jrheum.160153

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OBJECTIVE Widespread pain is no longer required for fibromyalgia (FM) diagnosis according to the American College of Rheumatology (ACR) 2010 preliminary diagnostic criteria and its 2011 modification, but its absence may be of concern. We investigated whether the widespread pain definition was satisfactory and the consequences of having a small number of painful regions or of not satisfying the widespread pain criterion. METHODS We studied 5011 patients who satisfied the 2011 criteria. FM was identified using the Widespread Pain Index (WPI) and the Symptom Severity Scale (SSS): WPI ≥ 7 and SSS ≥ 5 or WPI 3-6 and SSS ≥ 9. Widespread pain was 4 quadrants plus axial pain, according to the 1990 ACR FM criteria. RESULTS There were 4700 patients (93.8%) who satisfied the ACR 1990 widespread pain criterion. Using a new strict definition for 5 pain regions based on the WPI sites, a modified widespread pain criterion requiring 4 of 5 regions identified 98.8% of criteria-positive patients. Patients without widespread pain or those in the low WPI/high SSS group had milder FM and no evidence of increased psychological or physical distress. CONCLUSION In usual clinical and epidemiological studies, the 2011 and 2010 criteria work well, but are not as effective in patients with asymmetrical or regional pain who do not satisfy a widespread pain criterion. A ≥ 4-pain region widespread pain definition will eliminate regional pain false-positives and will identify 98.8% of current 2011 cases. Future revisions of the 2010/2011 criteria should consider incorporating the ≥ 4-region requirement to avoid misclassification.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology > Centre of Competence for Psychosomatic Medicine

UniBE Contributor:

Egloff, Niklaus

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0315-162X

Publisher:

The Journal of Rheumatology Publishing Company Limited

Language:

English

Submitter:

Annette Barbara Kocher

Date Deposited:

06 Mar 2017 09:30

Last Modified:

04 Nov 2017 06:07

Publisher DOI:

10.3899/jrheum.160153

PubMed ID:

27370877

Uncontrolled Keywords:

CRITERIA; FIBROMYALGIA; WIDESPREAD PAIN

BORIS DOI:

10.7892/boris.95130

URI:

https://boris.unibe.ch/id/eprint/95130

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