Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=0	 	 	 	 
AGE	Spearman correlation test	N=493	older	N=483	younger	N=10
NEOPLASM DISEASESTAGE	Kruskal-Wallis test	N=407	 	 	 	 
PATHOLOGY T STAGE	Spearman correlation test	N=349	higher stage	N=131	lower stage	N=218
PATHOLOGY N STAGE	Wilcoxon test	N=1772	class1	N=1772	class0	N=0
PATHOLOGY M STAGE	Kruskal-Wallis test	N=2	 	 	 	 
GENDER	Wilcoxon test	N=37	male	N=37	female	N=0
HISTOLOGICAL TYPE	Kruskal-Wallis test	N=3081	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	Wilcoxon test	N=10	yes	N=10	no	N=0
RADIATIONEXPOSURE	Wilcoxon test	N=0	 	 	 	 
EXTRATHYROIDAL EXTENSION	Kruskal-Wallis test	N=418	 	 	 	 
COMPLETENESS OF RESECTION	Kruskal-Wallis test	N=2	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=1344	higher number.of.lymph.nodes	N=46	lower number.of.lymph.nodes	N=1298
MULTIFOCALITY	Wilcoxon test	N=0	 	 	 	 
TUMOR SIZE	Spearman correlation test	N=1	higher tumor.size	N=1	lower tumor.size	N=0
RACE	Kruskal-Wallis test	N=39	 	 	 	 
ETHNICITY	Wilcoxon test	N=0