How much Is needed? Comparison of the effectiveness of different pain education dosages in patients with fibromyalgia

AbstractObjectiveTo assess the effect of different dosages of pain neuroscience education (PNE) programs on central nociceptive processing in patients with fibromyalgia. Second, to compare the effects of different dosages of PNE programs on numerical pain rating scale (NPRS), disability, and psychological variables.DesignSingle-blind randomized controlled trial.SettingThree fibromyalgia centers in Spain (Valencia, Alcorcón, Alcalá de Henares).SubjectsSeventy-seven patients with fibromyalgia.MethodsParticipants were randomized to four groups of PNE: 1) high-dose PNE (N = 20), 2) low–concentrated dose PNE (N = 20), 3) diluted low-dose PNE (N = 20), and (4) control treatment (N = 17), conducte…