Table 2.

Comparison of Malignancy Rate According to Various Guidelines

	TIRADS	Suspicious nodule on US	Confirmed as cancer	Malignancy rate
Total (n = 390)	Web-based TIRADS(≥ 8)	199 (51.0)	178 (70.1)	70.1%
	K-TIRADS High Suspicion	226 (57.9)	198 (78.0)	78.0%
	ATA guidelines High Suspicion	235 (60.3)	205 (96.2)	96.2%
	Russ et al. (≥ 4B)	278 (71.3)	217 (85.4)	85.4%

Data indicate the number of lesions

Numbers in parentheses indicate percentages

TIRADS thyroid image reporting and data system, ATA american thyroid association