CXCL3 and metastatic malignant neoplasm in the lymph nodes: The death events and follow-up time were the dependent variables; independently correlated clinical parameters such as sex, age, tumor site, tumor size, staging, tumor stage, differentiation, lymph node metastasis, distant metastasis, and plasma CXCL3 level were set as the independent variables; plasma CXCL3 level (HR: 2.017, 95% CI: 0.916-3.274, P < 0.01, Figure 4(j)) and tumor stage (HR: 1.809 95% CI: 0.726-2.612, P < 0.01) were found to be independent factors of overall survival.