Weighting of orthostatic intolerance time measurements with standing difficulty score stratifies ME/CFS symptom severity and analyte detection

Table 2 Summary statistics for standing time (ST) and weighted standing time (WST) for the ME/CFS and healthy study control groups

Standing criteria (median)	CFS (n = 45) (min)	Healthy (n = 17) (min)	p value
Standing time (IQR)	20 (20–14 = 6)	20 (20–20 = 0)	p = 0.0106^a
WST (IQR)	10 (14.29–4 = 10.29)	18.57 (14.29–4 = 10.29)	p < 0.0001^a

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