Table 5.

Exploratory prognostic stepwise linear regression model to place into the enhanced responder group.

Step	Variable entered	Partial R-square	Model R-square	C (p)	F value	Pr > F
1	Bimodal CFS baseline value	0.1749	0.1749	2.1134	12.3	0.0009
2	Duration of ME/CFS	0.0995	0.2744	−2.8935	7.82	0.007
3	RAND-36 fatigue baseline	0.0357	0.3101	−3.4053	2.89	0.0944
4	Looking for work, unemployed	0.032	0.342	−3.6579	2.67	0.1077