Criteria
ACR 2010 preliminary diagnostic criteria for fibromyalgia and measurement of symptom severity[118]
Criteria have been established that do not require performing a tender point count. These criteria consist of adding up the number of body sites of pain as well as the presence and severity of frequent comorbid symptoms such as fatigue, memory problems, and sleep disturbances.
Fibromyalgia criteria and severity scales for clinical and epidemiological studies: a modification of the ACR preliminary diagnostic criteria for fibromyalgia[10]
Modified ACR 2010 criteria that include a new Fibromyalgia Symptom scale (FS) formed by the combination of the Widespread Pain Index (WPI) and Symptom Severity score (SS). The modified ACR 2010 criteria enable diagnosis to be accomplished entirely by self-report.
ACTTION-APS Pain Taxonomy (AAPT) diagnostic criteria for fibromyalgia[93]
Utilizes the multidimensional diagnostic framework adopted by AAPT. Core diagnostic criteria are:
Multisite pain defined as 6 or more pain sites from a total of 9 possible sites
Moderate to severe sleep problems OR fatigue
Multisite pain plus fatigue or sleep problems must have been present for at least 3 months.
2016 revisions to the 2010/2011 American College of Rheumatology (ACR) criteria for fibromyalgia syndrome[94]
In 2016, revised criteria were developed, based on the 2010 ACR criteria and the 2011 self-reported survey questionnaire. The criteria include:
Generalized pain, defined as pain in at least 4 of 5 regions.
Symptoms have been present at a similar level for at least 3 months.
Widespread Pain Index (WPI) ≥7 and symptom severity scale (SSS) score ≥ 5 or WPI 4-6 and SSS score ≥ 9.
A diagnosis of fibromyalgia is valid irrespective of other diagnosis. A diagnosis of fibromyalgia does not exclude the presence of other clinically important illnesses.
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