The prevalence and clinical impact of reported cognitive difficulties (fibrofog) in patients with rheumatic disease with and without fibromyalgia.

AbstractCognitive dysfunction in patients with rheumatic disease encompasses a range of impairment. Their prevalence, co-occurrence, and impact on symptom severity were assessed in 57 patients with fibromyalgia (FMS) and 57 patients with rheumatic disease without FMS. Information pertaining to memor