Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=6	shorter survival	N=4	longer survival	N=2
AGE	Spearman correlation test	N=345	older	N=343	younger	N=2
NEOPLASM DISEASESTAGE	ANOVA test	N=280	 	 	 	 
PATHOLOGY T STAGE	Spearman correlation test	N=104	higher stage	N=59	lower stage	N=45
PATHOLOGY N STAGE	t test	N=1118	class1	N=97	class0	N=1021
PATHOLOGY M STAGE	ANOVA test	N=25	 	 	 	 
GENDER	t test	N=27	male	N=13	female	N=14
HISTOLOGICAL TYPE	ANOVA test	N=2303	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	t test	N=45	yes	N=23	no	N=22
RADIATIONEXPOSURE	t test	N=47	yes	N=23	no	N=24
EXTRATHYROIDAL EXTENSION	ANOVA test	N=329	 	 	 	 
COMPLETENESS OF RESECTION	ANOVA test	N=7	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=1004	higher number.of.lymph.nodes	N=20	lower number.of.lymph.nodes	N=984
MULTIFOCALITY	t test	N=0	 	 	 	 
TUMOR SIZE	Spearman correlation test	N=1	higher tumor.size	N=1	lower tumor.size	N=0