Psychosomatic medicine
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Psychosomatic medicine · May 2009
Comparative StudyDaily affect relations in fibromyalgia patients reveal positive affective disturbance.
To examine daily positive affective disturbance in the context of negative affect (NA) and pain among patients with fibromyalgia (FM) to determine a) if FM patients experience a deficit in daily positive affect (PA) relative to osteoarthritis (OA) patients; b) if FM patients differ from OA patients in the day-to-day relations of PA and NA; and c) if patients diagnosed with both OA and FM differ from patients with either OA-only or FM-only with respect to major outcomes. ⋯ FM patients exhibit a PA disturbance compared with OA patients. This disturbance is reflected by an overall deficit in PA and an inability to sustain PA in the face of pain and NA. Patients with both OA and FM may represent a subgroup of FM that is at particular risk for dysregulation of PA.