The model showed factors for inferior OS, which were listed as follows: vascular invasion (adjusted HR = 2.015 [1.013, 4.009], p = 0.046), preoperative AFP level (>200 ng/ml: adjusted HR = 3.696 [1.340, 10.193], p = 0.012; and >400 ng/ml: adjusted HR = 2.372 [1.251, 4.498], p = 0.008), and diameter of largest tumor (>5 cm) (adjusted HR = 4.431 [2.086, 9.416], p<0.001) (Table 4). Here, AFP is linked to neoplasm.