| Chronic fatigue syndrome | Idiopathic chronic fatigue | Health blood donors | Non-CFS virus disease1 |
---|---|---|---|---|
No. persons | 61 | 6 | 9 | 3 |
XMRV+/- | 9/52 | 0/6 | 0/9 | 0/3 |
Age, yrs | XMRV+/- | Â | Â | Â |
Mean | 44/43 | 41 | 35 | 41 |
Median | 45/43 | 42 | 31 | 41 |
Range | 30-54/21-61 | 28-61 | 16-54 | 20-56 |
White (%) | 100/94 | 100 | 100 | 67 |
Women (%) | 100/75 | 83 | 88 | 67 |
Mean yrs. of illness | 5/6 | 5 | NA | NA |
Residential geographic zone2 (%) | Â | Â | Â | Â |
Midwest | 56/36 | 67 | 50 | 33 |
Northeast | 0/13 | 0 | 0 | 0 |
South | 22/36 | 33 | 50 | 67 |
West | 22/15 | 0 | 0 | 0 |