Journal: Journal of Chronic Fatigue Syndrome, vol. 14, No. 1, 2007 [Abstract published online ahead of article, which is not yet available] Authors: Ellen A. Schur, Carolyn Noonan, Wayne R. Smith, Jack Goldberg, Dedra Buchwald. DOI: 10.1300/
Background: It is uncertain how much fatigue is related to weight in patients with Chronic Fatigue Syndrome (CFS).
Objective: To assess the association of body mass index (BMI) and fatigue in CFS patients.
Methods: Consecutive patients seen in a referral-based specialty clinic were eligible if they met CFS criteria and had completed required measures. Fatigue measures were the vitality subscale of the Medical Outcomes Short-Form 36 and the global fatigue index from the Multidimensional Assessment of Fatigue.
n In women, there was no relationship between BMI and vitality subscale or global fatigue index scores (P = 0.99 and P = 0.44).
n For men, vitality subscale scores significantly decreased as BMI increased (P = 0.02).
n In CFS patients, the prevalence of obesity was low despite risk factors for weight gain.
n Fatigue severity and BMI were unrelated in women with CFS, but this relationship may differ for men.
Keywords: Chronic Fatigue Syndrome, Fibromyalgia, fatigue, weight