AFP and hepatocellular carcinoma: In contrast, for the recipients with AFP levels of 20–400 ng/ml, 91 recipients in IBSA group and 327 recipients in non-IBSA group enrolled, the IBSA group exhibited a significantly elevated risk of HCC recurrence compared to the non-IBSA group [HR=2.060 (1.059–4.005), P=0.033, as delineated in Fig. 4C].