Jun 19, 2002

A rating scale for fibromyalgia and chronic fatigue syndrome (the FibroFatigue scale)

Journal of Psychosomatic Research
Olof ZachrissonCarl G Gottfries


To construct an observer's rating scale sensitive to change for measuring severity and treatment outcome in fibromyalgia (FM) and chronic fatigue syndrome (CFS) patients. A selection of items from the Comprehensive Psychopathological Rating Scale (CPRS) were repeatedly rated and used as outcome measure of a 24-week treatment study. In the study 100 women, fulfilling the criteria for both FM and CFS, received intermittent injections of a staphylococcus toxoid or placebo. Nine CPRS-items with high baseline incidence (cutoff 70%) were extracted and validated against global ratings and the Fibromyalgia Impact Questionnaire (FIQ). The fibromyalgia and chronic fatigue syndrome rating scale (the FibroFatigue scale) was thereafter formed based upon the extracted items and three supplemented ones. The interrater reliability was tested in 27 consecutive patients of both sexes. The FibroFatigue scale is an observer's rating scale with 12 items measuring pain, muscular tension, fatigue, concentration difficulties, failing memory, irritability, sadness, sleep disturbances, and autonomic disturbances (items derived from the CPRS) and irritable bowel, headache, and subjective experience of infection (new items). There was a statistically sign...Continue Reading

  • References28
  • Citations56


  • References28
  • Citations56


Mentioned in this Paper

Autonomic Nervous System Disorders
Staphylococcal Toxoid
Severity of Illness Index
Sleep Disorders
Irritable Bowel Syndrome
Fibromyalgia, Secondary
Muscle Tonus
Sleep Disturbances

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