Ultrasound criteria for risk stratification of thyroid nodules in the previously iodine deficient area of Austria - a single centre, retrospective analysis

Table 2 Chi-square statistics: Number (%) of positive criteria - BN versus cancer

BN vs. cancer:	BN	Cancer	Χ²	p-value
Mild hypoechogenicity	55/142 (39%)	19/53 (36%)	0.136	0.712
Marked hypoechogenicity	26/142 (18%)	22/53 (42%)	11.194	0.001
Microlobulated/ irregular margins	39/142 (27%)	29/53 (55%)	12.621	0.0004
Microcalcifications	10/142 (7%)	16/53 (30%)	17.894	0.00002
Taller than wide	17/142 (12%)	15/53 (28%)	7.503	0.006
No thin halo	99/142 (70%)	47/53 (89%)	7.375	0.007

ISSN: 1756-6614