Characterizing classes of fibromyalgia within the continuum of central sensitization syndrome

Background: While fibromyalgia (FM) is characterized by chronic widespread pain and tenderness, its presentation among patients as a continuum of diseases rather than a single disease contributes to the challenges of diagnosis and treatment. The purpose of this analysis was to distinguish and characterize classes of FM within the continuum using data from chronic pain patients. Methods: FM patients were identified from administrative claims data...