AFP and neoplasm: As shown in Table 1, low miR-31-5p expression was significantly correlated with tumor size (P = 0.010), TNM stage (P = 0.001) and metastasis (P = 0.007) but not with patient age (P = 0.406), gender (P = 0.316), AFP expression (P = 0.493), HBV infection (P = 0.317), or cirrhosis (P = 0.956).