Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=0	 	 	 	 
AGE	Spearman correlation test	N=135	older	N=59	younger	N=76
GENDER	t test	N=39	male	N=16	female	N=23
HISTOLOGICAL TYPE	ANOVA test	N=4479	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	t test	N=26	yes	N=18	no	N=8
RADIATIONEXPOSURE	t test	N=8	yes	N=3	no	N=5
DISTANT METASTASIS	ANOVA test	N=9	 	 	 	 
EXTRATHYROIDAL EXTENSION	ANOVA test	N=718	 	 	 	 
LYMPH NODE METASTASIS	ANOVA test	N=1245	 	 	 	 
COMPLETENESS OF RESECTION	ANOVA test	N=1	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=755	higher number.of.lymph.nodes	N=397	lower number.of.lymph.nodes	N=358
NEOPLASM DISEASESTAGE	ANOVA test	N=235	 	 	 	 
MULTIFOCALITY	t test	N=0	 	 	 	 
TUMOR SIZE	Spearman correlation test	N=5	higher tumor.size	N=0	lower tumor.size	N=5