Clinical feature Statistical test Significant genes Associated with                 Associated with Time to Death Cox regression test N=6 shorter survival N=4 longer survival N=2 AGE Spearman correlation test N=774 older N=201 younger N=573 GENDER t test N=19 male N=8 female N=11 HISTOLOGICAL TYPE ANOVA test N=3599 RADIATIONS RADIATION REGIMENINDICATION t test N=0 DISTANT METASTASIS ANOVA test N=0 LYMPH NODE METASTASIS ANOVA test N=44 NUMBER OF LYMPH NODES Spearman correlation test N=1 higher number.of.lymph.nodes N=0 lower number.of.lymph.nodes N=1 NEOPLASM DISEASESTAGE ANOVA test N=3