nearly significantp = 0.051
Univariate Analysis As shown in Table 3 , the univariate analysis revealed that the prognostic factors related to recurrence in all groups were immunosuppressive drugs ( p = 0.009), transplantation ( p = 0.006), no facial nerve conservation surgery ( p = 0.007), compromised margins ( p = 0.049), distant metastasis ( p = 0.038), radiotherapy ( p = 0.027), chemotherapy ( p < 0.001), and palliative care ( p < 0.001); the degree of histological differentiation was nearly significant ( p = 0.051).