Univariate analysis lead to the result that the following variables are significant with respect to survival (in parenthesis the significance): sex (p=0.05), age (p=0.006), total dose (p=0.01), tumor volume (p<0.001), localization (p=0.03), portal vein thrombosis (p<0.001), AJCC stage (p<0.001), BCLC stage (p<0.001), normal liver volume (p<0.001), T stage (p<0.001), baseline alpha fetoprotein (AFP) level at before therapy (p=0.03), volume of total liver receiving more than 30Gy (p=0.001). Here, AFP is linked to neoplasm.