Post-radiofrequency ablation overall survival curves in hepatocellular carcinoma patients with different independent prognostic factors. A: The 1-, 3-, 5-, 7-, and 10-year overall survival for patients with Child-Pugh class A liver function of were 94.1%, 78.9%, 60.1%, 50.5%, and 33.6%, whereas the overall survival rates were 82.5%, 46.8%, 25.9%, 17.2%, and 17.2%, respectively, for Child-Pugh class B, and 28.6%, 14.3%, 0%, 0%, and 0% for Child-Pugh class C, respectively (P < 0.001); B: The 1-, 3-, 5-, 7-, and 10-year overall survival rates were 94.2%, 78.5%, 63.0%, 51.8%, and 36.2%, respectively, for patients without portal vein hypertension and 79.8%, 53.2%, 30.2%, 20.4%, and 10.2%, respectively, for patients with portal vein hypertension (P = 0.002); C: The 1-, 3-, 5-, 7-, and 10-year survival rates were 90.6%, 75.3%, 59.3%, 46.8%, and 34.5%, respectively, for patients with a single tumor and 87.6%, 54.6%, 27.0%, 21.6%, and 10.8%, respectively, for patients with more than one tumor (P = 0.003).