AFP and hepatocellular carcinoma: Our results showed that age (RR, 1.60; RR, 0.40-2.65), gender (RR, 1.53; 95% CI, 0.50-2.95), tumor size (RR, 2.25; 95% CI, 0.95-4.34), and AFP (RR, 1.38; 95% CI, 0.58-2.64) were not independent predictor of the survival of patients with HCC (Table 2).