 survival.    Variable          Univariate analysis   Multivariate analysis      ----------------- --------------------- ----------------------- -------   Sex               0.000                 0.000 (0.000--0.000)    0.000   Age               0.000                 0.000 (0.000--0.000)    0.000   Smoking           0.000                 0.000 (0.000--0.000)    0.000   Drinking          0.000                 0.000 (0.000--0.000)    0.000   T stage           0.000                 0.000 (0.000--0.000)    0.000   N stage           0.000                 0.000 (0.000--0.000)    0.000   Differentiation   0.000                 0.000 (0.000--0.000)    0.000   Tumor length      0.000                 0.000 (0.000--0.000)    0.000   Site of tumor     0.000                 0.000 (0.000--0.000)    0.000   miRNA-000         0.000                 0.000 (0.000--0.000)    0.000  ######   Univariate and multivariate analyses of prognostic variables for 