Clinical feature	Statistical test	Significant genes	Associated with	               	Associated with	
Time to Death	Cox regression test	N=17	shorter survival	N=17	longer survival	N=0
AGE	Spearman correlation test	N=0	 	 	 	 
NEOPLASM DISEASESTAGE	ANOVA test	N=0	 	 	 	 
PATHOLOGY T STAGE	Spearman correlation test	N=0	 	 	 	 
PATHOLOGY N STAGE	Spearman correlation test	N=1	higher stage	N=1	lower stage	N=0
PATHOLOGY M STAGE	t test	N=4	mx	N=0	m0	N=4
GENDER	t test	N=1	male	N=1	female	N=0
HISTOLOGICAL TYPE	t test	N=2	head and neck squamous cell carcinoma basaloid type	N=0	head and neck squamous cell carcinoma	N=2
RADIATIONS RADIATION REGIMENINDICATION	t test	N=2	yes	N=1	no	N=1
NUMBERPACKYEARSSMOKED	Spearman correlation test	N=5	higher numberpackyearssmoked	N=5	lower numberpackyearssmoked	N=0
YEAROFTOBACCOSMOKINGONSET	Spearman correlation test	N=0	 	 	 	 
NUMBER OF LYMPH NODES	Spearman correlation test	N=0