Table 3.

Classification results.

A. Classification table
		Predicted		Total
GWI	Control
Observed	GWI	56	10	66
Control	3	13	16
Total		59	23	82

B. Analysis of the two-way classification table
Test	Value	DF	Significance (2-sided)
Pearson Chi-Square (corrected for continuity)	27.9	1	P = 1.29 × 10− 7
Fisher's Exact Test			P = 9.25 × 10− 7

C. Mantel–Haenszel common odds ratio estimate
Estimated odds ratio ($\widehat{\omega }$)	ln($\widehat{\omega }$)	SE of ln($\widehat{\omega }$)	Asymptotic significance (2-sided)
24.267 95% lower bound: 5.840 95% upper bound: 100.83	3.189	0.727	P = 0.000011

D. Sensitivity, specificity, and binomial confidence intervals
	Observed	95% confidence intervals
	Lower bound	Upper bound
Sensitivity	0.848 (84.8%)	0.804	0.893
Specificity	0.812 (81.2%)	0.715	0.910

E. Sensitivity, specificity, and Wilson's (1927) confidence intervals
	Observed	95% confidence intervals
	Lower bound	Upper bound
Sensitivity	0.848	0.702	0.888
Specificity	0.812	0.570	0.934