AFP and hepatocellular carcinoma: Conversely, AFP detected only 12 of 32 HCC cases from LC when cutoff value was set as 20 ng/mL, showing an accuracy of 64.5 % (95 % CI 52.1–75.3 %), a sensitivity of 37.5 % (95 % CI 22.9–54.8 %), and a specificity of 93.3 % (95 % CI: 78.7–98.2 %).