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QUESTION: In patients with the chronic fatigue syndrome (CFS), how effective is cognitive behaviour therapy (CBT) in reducing fatigue and functional improvement?
Design
Multicentre, randomised {allocation concealed*}†, unblinded,* controlled trial with 8 months follow up (follow up at 14 mo was <80%).
Setting
3 mental health settings in the Netherlands: 2 based in university medical centres and 1 in a mental health institute.
Patients
278 patients between 18 and 60 years of age (mean age 37 y, 79% women) with the US Centers for Disease Control and Prevention criteria for CFS, a score of ≥40 on the fatigue severity subscale of the checklist individual strength (CIS), and a score of ≥800 on the sickness impact profile. Exclusion criteria included pregnancy and previous or current participation in CFS research.
Intervention
93 patients were allocated to CBT (sixteen 1 h sessions over 8 mo), 94 to guided support groups (eleven 1.5 h meetings over 8 mo), and 91 to the control …
Footnotes
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Source of funding: Health Insurance Council.
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For correspondence: Ms J B Prins, Department of Medical Psychology, University Medical Centre Nijmegen, PO Box 9101, 6500 HB Nijmegen, the Netherlands. Fax +31 24 3613425.
↵† Information provided by the author.