Table 2.

Emax values of benign and malignant thyroid nodules in each group.

Group	Emax of benign (kPa)	Emax of malignant (kPa)	p
A	22.6 (16.1,31.5)*	42.9 (31.0,58.3)#	< 0.001
B	24.4 (18.9,35.8)	64.0 (49.6,88.4)	< 0.001
C	36.1 (20.2,53.3)	87.1 (67.0,123.9)	< 0.001

Values are presented as the median (interquartile range). *indicates that the comparison of Emax values among the three groups had statistical significance for benign nodules (p = 0.03); # indicates that the comparison of Emax values among the three groups had statistical significance for malignant nodules (p < 0.001).