[Retracted] The Diagnostic Efficacy of the American College of Radiology (ACR) Thyroid Imaging Report and Data System (TI-RADS) and the American Thyroid Association (ATA) Risk Stratification Systems for Thyroid Nodules

Table 5

ROC of ACR and ATA for thyroid cancer diagnosis.

Rating	AUC		Suggestive cut-off	Sensitivity	Specificity	Youden’s index	Accuracy	PPV	NPV	PLR	NLR
ACR	0.891 (0.862 to 0.920)	<0.001	4.5	0.78	0.90	0.68	0.84	0.90	0.78	7.84	0.25
ATA	0.896 (0.868 to 0.925)	<0.001	3.5	0.92	0.76	0.68	0.84	0.81	0.89	3.89	0.11
Lesion  cm
ACR	0.868 (0.832 to 0.904)	<0.001	4.5	0.70	0.90	0.60	82.17	0.82	0.82	7.05	0.33
ATA	0.872 (0.834 to 0.909)	<0.001	3.5	0.89	0.76	0.65	81.40	0.71	0.91	3.78	0.14
Lesion  cm
ACR	0.921 (0.892 to 0.950)	<0.001	4.5	0.88	0.90	0.78	89.52	0.81	0.94	8.90	0.13
ATA	0.930 (0.900 to 0.959)	<0.001	4.5	0.87	0.93	0.80	91.08	0.86	0.94	12.78	0.14

PPV: positive predictive value; NPV: negative predictive value; PLR: positive likelihood ratio; NLR: negative likelihood ratio.