Table 4.

Multivariate analysis of the predictive factors.

Variable		Coefficient	Standard Error	OR	P-value
Sex	Women vs. Men	0.468	0.156	2.992	0.003	**
Age		-0.018	0.007	-2.776	0.006	**
Number of foci		0.243	0.062	3.901	<0.001	***
Maximum Tumor Diameter on Ultrasound		1.351	0.148	9.153	<0.001	***
Calcification	Absent vs. Present	0.448	0.136	3.290	0.001	**
Capsule	Intact vs. Close to or invading	0.750	0.193	3.890	<0.001	***
Ultrasound-Reported Lymph Node Status	Negative vs. Suspicious	0.766	0.148	5.189	<0.001	***
TPO Antibody Level	<26.45 vs. ≥26.45 pmol/L	-0.760	0.167	-4.542	<0.001	***

TPO, thyroid peroxidase. Significance: ^∗∗P < 0.05; ^∗∗∗P < 0.01.