Table 1. Bethesda cytological categories of all nodules for radiologists and surgeons.

Bethesda categories	Radiologist, n (%)	Surgeon, n (%)	P value
I	196 (15.40)	164 (14.49)	0.533
II	202 (15.87)	119 (10.51)	<0.001
III	206 (16.18)	185 (16.34)	0.915
IV	30 (2.36)	37 (3.27)	0.175
V	167 (13.12)	104 (9.19)	0.002
VI	472 (37.08)	523 (46.20)	<0.001
Total	1,273 (100.0)	1,132 (100.0)	–

I (nondiagnostic); II (benign); III (atypia/follicular lesion of undetermined significance); IV (follicular neoplasm/suspicious for follicular neoplasm); V (suspicious for malignancy); and VI (malignant).