Table 1

Characteristics by subject classification (n = 182).

Classification
Number
Age (Mean ± SD)


Female
Male
Female
Male

CFS
61
17
39 (13)
44 (12)
CF
47
14
37 (12)
42 (10)
Controls
19
24
47 (16)
48 (12)

CFS: patients with chronic fatigue syndrome, CF: patients with chronic fatigue, not meeting the criteria for CFS, and healthy controls without fatigue complaints.

Vermeulen Population Health Metrics 2006 4:12   doi:10.1186/1478-7954-4-12