Table 3.

Diagnostic performances of the combination of TN-RSS and LN-RSS in EU-TIRADS and K-TIRADS.

	Sensitivity	Specificity	Accuracy	UFR	MMR	PMR
EU-TN + LN	41.4%	49.9%	42.7%	17.9%	86.7%	33.9%
K-TN + LN	36.7%	50.8%	38.8%	19.5%	87.4%	39.3%
P-value	0.000	0.375	0.000	0.403	0.615	0.000

TN-RSS, the risk stratification system for thyroid nodules; LN-RSS, the risk stratification system for lymph nodes; TIRADS, Thyroid Imaging Reporting and Data System; UFR, unnecessary FNA rate; MMR, missed malignancy rate; PMR, postponed malignancy rate.