The associations between the overall survival and patient characteristics, including sex, age, tumor location, tumor depth, lymph node metastasis, stage, SCC-Ag, p53-Ab, s-WDR1-Ab, white blood cell count, as well as neutrophil, lymphocyte, hemoglobin, platelet, C-reactive protein (CRP) and albumin levels were evaluated using univariate analysis. Here, CRP is linked to metastatic malignant neoplasm in the lymph nodes.