Combination Model of Thyrotrophin Receptor Antibody and Volumetric Orbital Apex Crowding Index as an Indicator of Dysthyroid Optic Neuropathy

Table 4

Diagnostic accuracies of the multivariate model, volumetric orbital apex crowding index (VACI), and thyrotrophin receptor antibody (TRAb).

		DON group	TED group (without DON)	Sum
TRAb	High	13 (true positive 81.3%)	7 (false positive 20.6%)	20
	Low	3 (false negative 18.8%)	27 (true negative 79.4%)	30
VACI	High	13 (true positive 81.3%)	4 (false positive 11.8%)	17
	Low	3 (false negative 18.8%)	30 (true negative 88.2%)	33
Multivariate model	(+)	15 (true positive 93.8%)	2 (false positive 5.9%)	17
	(-)	1 (false negative 6.3%)	31 (true negative 91.2%)	32
Sum		16	34	50