Skip to main content

Table 1 Baseline characteristics of chronic fatigue syndrome patients (CFS/ME) and healthy controls (HC)

From: Cytokine signatures in chronic fatigue syndrome patients: a Case Control Study and the effect of anakinra treatment

  CFS/ME (n = 50) HC (n = 48) P value
Age, years 31 (10) 31 (10) 0.98
Ethnicity
Caucasian (%)
Other (%)
49 (98)
1 (2)
47 (98)
1 (2)
0.37
Body mass index, kg/m2 25.1 (4.5) 24.9 (4.4) 0.88
Oral contraceptives (%)
Paracetamol (%)
22 (44)
22 (44)
16 (33)
8 (16)
0.28
0.002
Illness duration, months
≤ 3 years (%)
> 3 years (%)
43 [7–109]
29 (58)
21 (42)
N/A  
Fatigue severity (CIS-fatigue) 52 (4) 20 (11) < 0.001
Psychological distress (SCL-90) 150 (30) 119 (32) < 0.001
  1. Data are number (%), mean (SD), or median [range]
  2. CIS checklist individual strength, SCL-90 symptom checklist 90, N/A not applicable