Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=0	 	 	 	 
AGE	Spearman correlation test	N=35	older	N=0	younger	N=35
GENDER	t test	N=2	male	N=0	female	N=2
HISTOLOGICAL TYPE	ANOVA test	N=26	 	 	 	 
RADIATIONS RADIATION REGIMENINDICATION	t test	N=502	yes	N=463	no	N=39
DISTANT METASTASIS	ANOVA test	N=0	 	 	 	 
LYMPH NODE METASTASIS	ANOVA test	N=1	 	 	 	 
COMPLETENESS OF RESECTION	ANOVA test	N=143	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=0	 	 	 	 
NEOPLASM DISEASESTAGE	ANOVA test	N=47