Table 2. The sensitivities and specificities of CD117 and PDGFRA, alone or in combination with DOG1, in the diagnosis GIST.

Parameters	Sensitivity	Specificity	Positive likelihood ratio	Negative likelihood ratio	Diagnostic odds ratio	Area under ROC curve
CD117	0.989	0.800	4.945	0.014	372.000	0.945
PDGFRA	0.981	0.343	1.493	0.055	27.652	0.748
DOG1	0.968	0.710	3.338	0.045	73.333	0.895
CD117 + DOG1	0.960	0.840	6.000	0.048	61.071	0.895
PDFGRA + DOG1	0.933	0.947	17.604	0.071	252.000	0.840
CD117 + PDGFRA + DOG1	0.961	0.955	21.356	0.041	2,352.000	0.975

GIST, gastrointestinal stromal tumor.