Table2. Ultrasound Features of the Study Participants according to Thyroid Functional Status .

Parameters		All n= 149	Overt Hypothyroidism n= 24	Subclinical Hypothyroidism n= 39	Euthyroid subjects n= 86	P value
	Without pseudonodule	95(63.76%)	11(45.83%)	22(56.41%)	62(72.09%)
Pseudonodule, n (%)	Pseudomicro nodule	38(25.5%)	6(25%)	12(30.77%)	20(23.26%)	0.008
	Pseudomacro nodule	16(10.74%)	7(29.17%)	5(12.82%)	4(4.65%)
	Hypoechoic	119(79.87%)	22(14.77%)	34(22.82%)	63(42.28%)
Echogenicity of parenchyma, n (%)	Hyperechoic	11(7.38%)	2(1.34%)	0(0%)	9(6.04%)	0.111
	Isoechoic	15(10.07%)	0(0%)	5(3.36%)	10(6.71%)
	Solid	12(8.05%)	2(8.33%)	4(10.26%)	6(6.98%)
Nodule Composition, n (%)	Cystic	2(1.34%)	1(4.17%)	0(0%)	1(1.16%)	0.785
	Complex	4(2.68%)	0(0%)	1(2.56%)	3(3.49%)
Nodule Shape, n (%)	Globular	20(13.42%)	4(16.67%)	6(15.38%)	10(11.63%)	0.864
	Irregular	1(0.67%)	0(0%)	0(0%)	1(1.16%)
Reactive lymph node, n (%)		2(1.34%)	5(20.83%)	1(2.56%)	2(2.33%)	0.702
	G0	28(71.81%)	11(54.17%)	8(66.67%)	9(79.07%)
	G1	15(15.44%)	4(20.83%)	7(17.95%)	4(12.79%)
Gray scale calcification, n (%)	G2	89(7.38%)	28(20.83%)	29(10.26%)	32(2.33%)	0.116
	G3	9(4.7%)	3(4.17%)	2(5.13%)	4(4.65%)
	G4	8(0.67%)	3(0%)	3(0%)	2(1.16%)
	thickness	15.72±3.72	15.04±3.1	14.8±2.94	15.14±3.03	0.132
	width	17.4±3.26	17.21±2.97	17.23±2.75	17.06±3.3	0.961
Right lobe, mm, mean ± SD	length	45.49±2.85	46.11±3.13	46.67±2.89	45.28±3.59	0.055
	Volume, ml	5.68±2.2	6.25±4.01	7.27±5.88	5.53±2.2	0.478
	thickness	15±3.24	14.3±3.02	14.03±3.02	14.46±2.88	0.544
	width	17.08±3.64	16.9±2.98	16.96±2.67	16.67±3.26	0.354
Left lobe, mm, mean ± SD	length	44.08±3.72	44.87±3.57	45.07±3.6	44.9±3.43	0.844
	Volume, ml	5.48±2.52	5.13±2.52	5.25±3.21	4.67±1.6	0.486
Isthmus thickness, mm, mean ± SD		1.86±0.68	1.91±0.9	1.77±0.74	2.26±1.2	0.018

Continuous variables are compared by one way ANOVA with Tukey post hoc tests; Categorical data are compared by chi-square test.