TABLE 3.

Comparison of the diagnostic performance of the CAD system in differentiating the thyroid nodules of different sizes.

	Sensitivity (%)	Specificity (%)	Accuracy (%)
d ≤ 15 mm	76.3 (116/152)	65.5 (36/55)	73.4 (152/207)
15 < d ≤ 25 mm	55.0 (11/20)	87.5 (28/32)	75 (39/52)
d > 25 mm	42.9 (6/14)	97.8 (90/92)	90.5 (96/106)
P-value
d ≤ 15 mm vs. 15 < d ≤ 25 mm	0.041	0.025	0.818
d ≤ 15 mm vs. d > 25 mm	0.016*	<0.001*	<0.001*
15 < d ≤ 25 mm vs. d > 25 mm	0.486	0.062	0.009*

*P values considered significant after applying Bonferroni correction.