AFP and neoplasm: Besides, the univariable results revealed that age, sex, AFP, differentiation grade, AJCC stage, T stage, tumor size and treatment type were significantly associated with DSS and the multivariate results revealed that age, sex, AFP, differentiation grade, AJCC stage, T stage, tumor size and treatment type were independent prognostic factors of DSS (all P < 0.05, Supplementary Table S2).