Table 3.

Multivariate logistic regression analysis for level VII lymph node metastasis

Variables	p	OR	95%CI
Hashimoto Thyroiditis
No		1 (reference)
Yes	.040	0.422	0.185–0.963
Ultrasonography-positive LNM
No		1 (reference)
Yes	< 0.001	11.788	3.497–39.732
Location of primary tumor
Upper third	.002	1 (reference)
Middle third	.003	3.699	1.546–8.849
Lower third	.001	4.278	1.830–10.002

LNM lymph node metastasis