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Table 1 General characteristics of subjects by recruitment classification.

From: Chronic Fatigue Syndrome – A clinically empirical approach to its definition and study

  CFS
(n = 58)
CFS-MDDm
(n = 27)
ISF
(n = 59)
ISF-MDDm
(n = 28)
Control
(n = 55)
All
(N = 227)
% Women 86.2 77.8 71.2 92.9 85.5 81.9
Median age (years) 51.5 48.0 50.0 51.5 51.0 51
% White 94.8 92.6 93.2 92.9 96.4 94.3
BMI (%)       
<18.5: Underweight 1.7 0.0 1.7 0.0 1.8 1.3
18.5–24.9: Normal 13.8 33.3 20.3 21.4 16.4 19.4
25–29.9: Overweight 41.4 29.6 32.2 35.7 36.4 34.7
30–34.9: Obese 31.0 29.6 35.6 21.4 34.5 31.7
≥35: Morbidly Obese 12.1 7.4 10.2 21.4 10.9 11.9