CEACAM5 and neoplasm: Logistic regression analysis showed that carcinoembryonic antigen (CEA), high serum miR-21 expression, low miR-122 expression, tumor size, BMI, and age were the independent risk factors for the efficacy of capecitabine combined with TACE in patients with liver metastasis after CRC surgery (P<0.05) (Table 4).