Fibromyalgia Outcomes Over Time: Results from a Prospective Observational Study in the United States.

Background: Longitudinal research on outcomes of patients with fibromyalgia is limited.

Objective: To assess clinician and patient-reported outcomes over time among fibromyalgia patients.

Methods: At enrollment (Baseline) and follow-up (approximately 2 years later), consented patients were screened for chronic widespread pain (CWP), attended a physician site visit to determine fibromyalgia status, and completed an online questionnaire assessing pain, sleep, function, health status, productivity, medications, and healthcare resource use.

Progression of fibromyalgia: results from a 2-year observational fibromyalgia and chronic pain study in the US.

Background: A previous fibromyalgia (FM) research reports that 20%-47% of diagnosed patients may not meet the study definition of FM 1-2 years after diagnosis. The aim of this study was to gain a better understanding of the progression of FM in a geographically diverse cohort over a 2-year time period.

Methods: This cohort study followed 226 subjects recruited online to assess FM and chronic widespread pain (CWP) diagnosis stability over time.