Table 2.

Number of Subjects Showing Positive Discriminant Scores (D > 0) and Negative Discriminant Scores (D < 0) in Linear Discriminant Analysis.

	D > 0	D < 0	Total	Mahalanobis d	p
MDD vs. Control				2.62961	<0.001
MDD	43	6	49
Control	11	35	46
Total	54	41
	sensitivity	specificity
	87.8%	76.1%
CFS vs. Control				6.48905	<0.001
CFS	44	0	44
Control	4	42	46
Total	48	42
	sensitivity	specificity
	100%	91.3%
MDD vs. CFS				4.05344	<0.001
MDD	45	4	49
CFS	0	44	44
Total	45	48
	sensitivity	specificity
	91.8%	100%

MDD: major depressive disorder, CFS: chronic fatigue syndrome, D: discriminant score in linear discriminant analysis, Mahalanobis d: Mahalanobis distance, P: p value for Mahalanobis distance.