Table 1.

Participant classification results yielded by the binary logistic regression. (see text for details.)

A. Classification table
		Predicted		Total
		GWI	Control
Observed	GWI	38	2	40
	Control	3	43	46
Total		41	45	86

B. Analysis of the two-way classification table
Test	Value	DF	Significance (2-sided)
Pearson Chi-square (corrected for continuity)	63.6	1	P = 1.49 × 10− 15
Fisher's exact test			P = 2.19 × 10− 18

C. Mantel-Haenszel common odds ratio estimate
Estimated odds ratio ($\widehat{\omega }$) 272.3	ln ($\widehat{\omega }$)	SE of ln ($\widehat{\omega }$)	Asymptotic significance (2-sided)
95% lower bound: 43.2 95% upper bound: 1717.6	5.61	0.94	P = 2.41 × 10− 9