The Massachusetts CFIDS/ME & FM Association, a 501(c)3 founded in 1985, exists to meet the needs of patients with CFIDS (Chronic Fatigue and Immune Dysfunction Syndrome, also known as Chronic Fatigue Syndrome), ME (Myalgic Encephalomyelitis) or FM (Fibromyalgia), their families and loved ones. The Massachusetts CFIDS/ME & FM Association works to educate health-care providers and the general public regarding these severely-disabling physical illnesses. We also support patients and their families and advocate for more effective treatment and research.
- Last Updated: 08 November 2015 08 November 2015
Coury, F. et al., "Rheumatoid Arthritis and Fibromyalgia: A Frequent Unrelated Association Complicating Disease Management," J. Rheumatol. Dec 15 (2008). [Epub ahead of print] PMID: 19132794
Objective. To assess the value of the 28-joint Disease Activity Score (DAS28) in evaluating disease activity in rheumatoid arthritis (RA) associated with fibromyalgia (FM). In this situation, because of the weight of the subjective measures included in the DAS28 equation, the patient's status may be overestimated, leading to inappropriate treatment. We analyze the relationship between RA and FM and discuss whether the association is random or a marker of poor prognosis.
Methods. A questionnaire, developed when biologic therapies were introduced, was administered and the results analyzed in a consecutive, female outpatient population including 105 patients with RA, 49 with RA and FM (RAF), and 28 with FM. Psychosocial characteristics, disease presentation, and radiographic joint destruction evaluation were compared in the 3 populations.
Results. The presentation of RA was the same in patients with RA and RAF, but the 2 populations differed by socio-professional characteristics, significantly higher disease activity in patients with RAF, and significantly more severe joint destruction in patients with RA. The RAF group was similar to the FM control population in socio-professional and some physical characteristics. Regression analysis using the DAS28 measures differed significantly in the weight allowed to 28-joint counts for pain and swelling, but the constant factor was higher in patients with RAF.
Conclusion. DAS28 overestimated objective RA severity in patients who also had FM. The association between RA and FM does not appear to be a marker of worse prognosis, but rather a fortuitous association between the 2 diseases and one that may afford these patients some protection against joint destruction.
Notice about names
The Massachusetts CFIDS/ME & FM Association would like to clarify the use of the various acronyms for Chronic Fatigue Syndrome (CFS), Chronic Fatigue & Immune Dysfunction Syndrome (CFIDS) and Myalgic Encephalomyelitis (ME) on this site. When we generate our own articles on the illness, we will refer to it as ME/CFS, the term now generally used in the United States. When we are reporting on someone else’s report, we will use the term they use. The National Institutes of Health (NIH) are currently using ME/CFS. The Centers for Disease Control and Prevention (CDC) are calling the illness CFS.
Until there is consensus on a name for the illness, the Massachusetts CFIDS/ME & FM Association name will not change.