Chronic Fatigue Syndrome (CFS) criteria in patients with other forms of unexplained chronic fatigue

To determine the prevalence of chronic fatigue syndrome (CFS)
criteria in other forms of unexplained chronic fatigue, 297
consecutive outpatients under the age of 40 from a general
medicine practice were studied. After excluding the three with
chronic fatigue syndrome, the remaining 294 individuals were
divided into those with unexplained chronic fatigue (64
patients) those without (the remaining 230 patients). Chronic
fatigue syndrome criteria noted to be significantly more
common in those with unexplained fatigue compared to those
without include: fever, painful adenopathy, muscle weakness,
myalgia, headache, migratory arthralgia, neuropsychologic
symptoms, and sleep disorder. Like chronic fatigue syndrome,
unexplained chronic fatigue often started suddenly. I conclude
that the CFS criteria are noted more commonly than expected in
other forms of unexplained chronic fatigue.

MCM: From 1994 AACFS meeting in Ft. Lauderdale

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