Clinical feature Statistical test Significant variables Associated with                 Associated with DAYS_TO_DEATH_OR_LAST_FUP Cox regression test N=1 N=NA N=NA AGE Spearman correlation test N=2 older N=2 younger N=0 AGE_mutation rate Linear Regression Analysis N=1 PATHOLOGIC_STAGE Kruskal-Wallis test N=2 PATHOLOGY_T_STAGE Spearman correlation test N=2 higher stage N=2 lower stage N=0 PATHOLOGY_N_STAGE Spearman correlation test N=0 PATHOLOGY_M_STAGE Wilcoxon test N=0 GENDER Wilcoxon test N=1 male N=1 female N=0 RADIATION_THERAPY Wilcoxon test N=0 HISTOLOGICAL_TYPE Kruskal-Wallis test N=0 NUMBER_PACK_YEARS_SMOKED Spearman correlation test N=2 higher number_pack_years_smoked N=2 lower number_pack_years_smoked N=0 YEAR_OF_TOBACCO_SMOKING_ONSET Spearman correlation test N=2 higher year_of_tobacco_smoking_onset N=0 lower year_of_tobacco_smoking_onset N=2 NUMBER_OF_LYMPH_NODES Spearman correlation test N=0 RACE Kruskal-Wallis test N=0 ETHNICITY Wilcoxon test N=0