AFP and hepatocellular carcinoma: As compared to the patients with treatment age <50 years and AFP <8 ng/mL (0.36, 95% CI = 0.06–1.19), the incidence rates of HCC per 100 person-years were significantly higher in patients with age ≥50 years and AFP ≥8 ng/mL (3.14, 95% CI = 1.99–4.72), p = 0.004.