Rheumatology international
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Comparative Study
Performance of 2016 revised fibromyalgia diagnostic criteria in patients with rheumatoid arthritis.
Fibromyalgia (FM) is a common comorbidity in rheumatoid arthritis (RA). Recently, there were several updates for the American College of Rheumatology (ACR) FM criteria. To assess the performance of the 2016 revised ACR FM criteria in patients with RA in comparison to 1990 criteria and to study the relation to composite disease measures. ⋯ A significant positive correlation was found between the polysymptomatic Distress scale (PSD) and DAS28-ESR, CDAI, and PGA (rs 0.481, 0.516, 0.511, respectively, P < 0.001). FM coexists in a substantial number of RA patients according to the 2016 revised criteria and associated with high composite disease activity measures. Therefore, assessment of FM should be considered in RA patients with persistently high disease activity.