AFP and hepatocellular carcinoma: Logistic regression analyses were used to assess the relationship between risk scores and HCC clinical characteristics, revealing that high risk scores were associated with low histological grade (G3–4 vs G1–2, OR = 2.060) and high AFP levels (> 20 ng/mL vs < =20 ng/mL, OR = 1.986) (P < 0.05).