Table 2. Correlation of TIRADS classifications and final diagnosis.

TIRADSclassification	n	Surgery (%)	Benign	Malignant	Malignant Rate(95% CI)
3	57	31.6	51	6	10.5 (4.0–21.5)
4A	55	67.3	25	30	54.5 (40.6–68.0)
4B	94	95.7	10	84	89.4 (81.3–94.8)
5	14	100	0	14	100 (76.8–100.0)
Total	220	72.3	86	134	60.9 (54.1–67.4)

Abbreviations: CI, confidence interval.