Table 1

 Patient information including summary of aspects used for the CFS case definition and scores for physical fatigue, mental fatigue, anxiety, and depression

Clinical parameterN
CFS, chronic fatigue syndrome; HAD, Hospital Anxiety and Depression.
Sex9 male/16 female
Mean age40.6 years
Mean duration of disease2.3 years
CFS began with flu-like illness15
Impaired memory22
Impaired concentration21
Sore throat17
Myalgia20
Arthralgia13
Headache19
Unrefreshing sleep21
Post exertional malaise23
Tender lymphadenopathy18
Autonomic features20
Atopic features13
Physical fatigue (Chalder) score (most severe, 21)Mean, 17.2; range, 12–21
Mental fatigue (Chalder) score (most severe, 12)Mean, 9.28; range, 5–12
Anxiety score (HAD) (most severe, 21)Mean, 9.88; range, 3–18
Depression score (HAD) (most severe, 21)Mean, 7.96; range, 1–20