Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
AGE	Spearman correlation test	N=4	older	N=4	younger	N=0
GENDER	t test	N=1	male	N=0	female	N=1
HISTOLOGICAL TYPE	ANOVA test	N=173	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	t test	N=7	yes	N=5	no	N=2
RADIATIONEXPOSURE	t test	N=0	 	 	 	 
DISTANT METASTASIS	ANOVA test	N=2	 	 	 	 
EXTRATHYROIDAL EXTENSION	ANOVA test	N=12	 	 	 	 
LYMPH NODE METASTASIS	ANOVA test	N=28	 	 	 	 
COMPLETENESS OF RESECTION	ANOVA test	N=0	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=20	higher number.of.lymph.nodes	N=11	lower number.of.lymph.nodes	N=9
NEOPLASM DISEASESTAGE	ANOVA test	N=6	 	 	 	 
MULTIFOCALITY	t test	N=1	unifocal	N=0	multifocal	N=1
TUMOR SIZE	Spearman correlation test	N=8	higher tumor.size	N=3	lower tumor.size	N=5