Subclassification of the “Grey Zone” of Thyroid Cytology; A Retrospective Descriptive Study with Clinical, Cytological, and Histological Correlation

Table 4

Multivariate logistic analysis of the probability of identifying a benign nodule (NH and thyroiditis) versus an adenoma by clinical, echographic features and cytologic category.

	Parameters entered in the model	OR	𝑃 value	Concordance percentage	𝑅^2
All nodules (𝑛=108)	Multiple versus single nodule	14.47	.002	81.3%	0.38
	Cytologic Category (AUS versus FL)	11.96	.000
	Diameter (mm)	0.94	.043
Only solid nodules (𝑛=80)	Multiple versus single nodule	10.93	.006	80.8%	0.37
	Cytologic Category (AUS versus FL)	8.48	.005
	Vascular flow (yes versus No)	0.14	.035

AUS: atypia of undetermined significance; FL: follicular lesion.