Differential Profile of Ultrasound Findings Associated with Malignancy in Mixed and Solid Thyroid Nodules in an Elderly Female Population

Table 2

General characteristics of mixed and solid nodules.

	Mixed nodules; (𝑛=158)	Solid nodules; (𝑛=304)	𝑃 value
Patients’ age (years)	69±7	69±7	0.504
Longitudinal diameter; (mm, 𝑛=158/304)	21 (15–30)	17 (14–24)	<0.001
Anteroposterior diameter; (mm, 𝑛=147/281)	14 (10–20)	11 (9–16)	<0.001
Axial diameter; (mm, 𝑛=143/252)	16 (12–23)	13 (10–19)	<0.001
Hypoechoicity; (%, 𝑛=148/298)	53	54	0.950
Irregular margins; (%, 𝑛=129/258)	40	37	0.604
Microcalcifications; (%, 𝑛=133/269)	42	39	0.554
Absence of halo; (%, 𝑛=102/214)	54	58	0.451
Taller than wider; (%, 𝑛=140/252)	29	39	0.057
Malignant cytology; (%, 𝑛=136/256)	7.4	5.8	0.565

The values in brackets indicate the number of patients with available information for that specific variable. For continuous variables, results are expressed as mean ± SD and median (interquartile range) corresponding to Gaussian and non-Gaussian distribution, respectively.