Clinical feature Statistical test Significant genes Associated with                 Associated with AGE Spearman correlation test N=0 GENDER t test N=0 RADIATIONEXPOSURE t test N=1 yes N=0 no N=1 DISTANT METASTASIS ANOVA test N=0 EXTRATHYROIDAL EXTENSION ANOVA test N=0 LYMPH NODE METASTASIS ANOVA test N=0 COMPLETENESS OF RESECTION ANOVA test N=0 NUMBER OF LYMPH NODES Spearman correlation test N=0 NEOPLASM DISEASESTAGE ANOVA test N=1 MULTIFOCALITY t test N=0 TUMOR SIZE Spearman correlation test N=0