Table 3.

Multivariate analysis.

Variables	Hazard ratio	95% Confidence Interval	P value
Tumor size	2.48	1.03–5.48	0.042*
ETE	1.59	0.68–3.74	0.284
LN metastasis	2.66	1.07–6.58	0.035*
TNM stage	4.66	1.89–11.47	0.001*
SMYD2 expression	2.51	1.05–4.82	0.040*

^*P<0.05 was considered as statistically significant.

ETE – extrathyroidal extension; LN – lymph node; SMYD2 – SET and MYND domain-containing protein 2.