CDK1 and neoplasm: These results revealed that CDK1 was negative in 34 cases and positive in 74 cases, and the high expression level of CDK1 was related to tumors in the right colon (p = 0.029), lymph node metastasis (p = 0.020), and tumor-node-metastasis (TNM) stage (p = 0.031) (Table 1).