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=30 older N=30 younger N=0 PATHOLOGIC_STAGE Kruskal-Wallis test N=30 PATHOLOGY_T_STAGE Spearman correlation test N=30 higher stage N=19 lower stage N=11 PATHOLOGY_N_STAGE Wilcoxon test N=30 n1 N=30 n0 N=0 PATHOLOGY_M_STAGE Wilcoxon test N=30 class1 N=30 class0 N=0 GENDER Wilcoxon test N=30 male N=30 female N=0 RADIATION_THERAPY Wilcoxon test N=0 HISTOLOGICAL_TYPE Kruskal-Wallis test N=30 RADIATION_EXPOSURE Wilcoxon test N=0 EXTRATHYROIDAL_EXTENSION Kruskal-Wallis test N=30 RESIDUAL_TUMOR Kruskal-Wallis test N=30 NUMBER_OF_LYMPH_NODES Spearman correlation test N=30 higher number_of_lymph_nodes N=0 lower number_of_lymph_nodes N=30 MULTIFOCALITY Wilcoxon test N=1 unifocal N=1 multifocal N=0 TUMOR_SIZE Spearman correlation test N=30 higher tumor_size N=22 lower tumor_size N=8 RACE Kruskal-Wallis test N=30 ETHNICITY Wilcoxon test N=0