IL6 and neoplasm: IL-12 was positively correlated with ECOG (r = 0.190, p<0.05), AFP (r = 0.247, p<0.05) and intrahepatic tumor size (r = 0.230, p<0.05), and IL-6 was positively correlated with intrahepatic tumor size (r = 0.217, p<0.05).