BTG1 and metastatic malignant neoplasm in the lymph nodes: As shown in Figures 3A–C and Table 6, BTG1 expression was positively related to depth of invasion, venous invasion, lymph node metastasis, distant metastasis, and TNM staging (P < 0.05) but not correlated with age, sex, lymphatic invasion, liver metastasis, or differentiation of colorectal cancer (P > 0.05).