Other tumor-related factors also showed significant differences between the two groups: (1) gender (P = 0.008), age (P = 0.017, 2) results of preoperative serological tests alpha-fetoprotein (AFP) (P < 0.001), CA125 (P = 0.010), total bilirubin (P = 0.032), glutamic acid transaminase (P < 0.001), γ-glutamyl transpeptidase (P < 0.001); and (3) Edmondson-Steiner histology grade (P < 0.001), tumor maximal diameter (P < 0.001), tumor number (P = 0.002), encapsulation (P < 0.001), existence of satellite nodules (P < 0.001). The gene discussed is AFP; the disease is neoplasm.