Mediastinal Lymph Node Metastases in Thyroid Cancer: Characteristics, Predictive Factors, and Prognosis

Table 3

Cox univariate and multivariate analysis for the effect factors of prognosis of the PTC patients for initial treatment.

Factors	DFS					RFS
	Univariate	Multivariate				Univariate	Multivariate
			HR	95%CI				HR	95%CI
				Lower	Up				Lower	Up
Age	0.953	0.472	0.98	0.92	1.04	0.638	0.472	0.98	0.92	1.04
Multifocality	0.715	0.627	1.53	0.27	8.53	0.958	0.627	1.53	0.27	8.53
ETE	0.069	0.017	8.06	1.45	44.87	0.038	0.017	8.06	1.45	44.87
Number of mediastinal lymph nodes involved	0.057	0.045	1.83	1.01	3.30	0.057	0.045	1.83	1.01	3.30

ETE: extrathyroidal extension. .