A prediction model for overall survival after transarterial chemoembolization for hepatocellular carcinoma invading the hepatic vein or inferior vena cava.

• To develop a risk prediction model for patients with HCC with HV or IVC invasion treated with TACE, five factors were selected from a multivariate Cox regression model for overall survival. • The combination of these factors helped to identify two prognostic categories: low- and high-risk. • The predictive model can help to select candidates who will benefit most from TACE in this patient group.