Table 1

Rates of Normal and Different Abnormal Standing Tests


CFS
Controls

Normal
30
28
Orthostatic tachycardia (OT) alone
5
1
Orthostatic hypertension (HT) alone
9
4
Orthostatic hypertension (HT) plus OT
1
0
Orthostatic hypotension (ht) alone
4
1
Orthostatic hypocapnia alone
11
0
Orthostatic hypocapnia plus OT
0
1
Orthostatic hypocapnia plus HT
1
0
Orthostatic hypocapnia plus HT plus OT
1
0

Total Normal/Abnormal
30/32
28/7

Natelson et al. Dynamic Medicine 2007 6:2   doi:10.1186/1476-5918-6-2