Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=2	shorter survival	N=1	longer survival	N=1
AGE	Spearman correlation test	N=23	older	N=13	younger	N=10
NEOPLASM DISEASESTAGE	Kruskal-Wallis test	N=13	 	 	 	 
PATHOLOGY T STAGE	Spearman correlation test	N=8	higher stage	N=3	lower stage	N=5
PATHOLOGY N STAGE	Wilcoxon test	N=34	class1	N=34	class0	N=0
PATHOLOGY M STAGE	Kruskal-Wallis test	N=4	 	 	 	 
GENDER	Wilcoxon test	N=0	 	 	 	 
HISTOLOGICAL TYPE	Kruskal-Wallis test	N=49	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	Wilcoxon test	N=6	yes	N=6	no	N=0
RADIATIONEXPOSURE	Wilcoxon test	N=0	 	 	 	 
EXTRATHYROIDAL EXTENSION	Kruskal-Wallis test	N=13	 	 	 	 
COMPLETENESS OF RESECTION	Kruskal-Wallis test	N=0	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=12	higher number.of.lymph.nodes	N=10	lower number.of.lymph.nodes	N=2
MULTIFOCALITY	Wilcoxon test	N=1	unifocal	N=1	multifocal	N=0
TUMOR SIZE	Spearman correlation test	N=0	 	 	 	 
RACE	Kruskal-Wallis test	N=2	 	 	 	 
ETHNICITY	Wilcoxon test	N=0