Clinical feature Statistical test Significant genes Associated with                 Associated with DAYS_TO_DEATH_OR_LAST_FUP Cox regression test N=30 N=NA N=NA YEARS_TO_BIRTH Spearman correlation test N=1 older N=1 younger N=0 PATHOLOGIC_STAGE Kruskal-Wallis test N=30 PATHOLOGY_T_STAGE Spearman correlation test N=30 higher stage N=30 lower stage N=0 PATHOLOGY_N_STAGE Wilcoxon test N=0 GENDER Wilcoxon test N=17 male N=17 female N=0 RADIATION_THERAPY Wilcoxon test N=0 HISTOLOGICAL_TYPE Kruskal-Wallis test N=0 RESIDUAL_TUMOR Kruskal-Wallis test N=30 NUMBER_OF_LYMPH_NODES Spearman correlation test N=30 higher number_of_lymph_nodes N=16 lower number_of_lymph_nodes N=14 ETHNICITY Wilcoxon test N=0