Table 2

Results for measurement of serum AFU, AFP, or both, in the diagnosis of HBV-HCC and HCV-HCC

TestValidation
AUC
(95% CI)
Sensitivity
(%)
Specificity
(%)
PPV
(%)
NPV
(%)
Positive
LR
Negative
LR
P
value
AUC
(95% CI)
Sensitivity
(%)
Specificity
(%)
PPV
(%)
NPV
(%)
Positive
LR
Negative
LR
P
value
Hepatitis-HCC vs. CH and LC (results for the measurement of AFU, AFP, or both in diagnosis of hepatitis-HCC)
AFP0.780 (0.725–0.828)52.8%93.7%87.8%69.8%8.400.50<0.0010.809 (0.755–0.855)62.8%90.2%85.4%72.7%6.410.41<0.001
AFU0.752 (0.696–0.803)71.5%67.1%65.2%73.3%2.180.42<0.0010.727 (0.668–0.781)69.4%65.4%64.6%70.2%2.000.47<0.001
AFP + AFU0.835 (0.784–0.877)69.1%87.4%82.5%76.7%5.490.35<0.0010.841 (0.790–0.884)71.9%86.5%82.9%77.2%5.310.32<0.001
Early hepatitis-HCC vs. CH and LC (results for measurement of AFU, AFP, or both in diagnosis of early hepatitis-HCC)
AFP0.741 (0.675–0.800)44.3%93.7%75.0%79.8%7.030.59<0.0010.758 (0.693–0.816)52.2%90.2%73.5%78.4%5.330.53<0.001
AFU0.666 (0.597–0.730)63.9%67.1%45.3%81.4%1.940.54<0.0010.671 (0.602–0.736)56.5%65.4%45.9%74.4%1.630.67<0.001
AFP + AFU0.776 (0.712–0.831)52.5%91.6%72.7%81.9%6.250.52<0.0010.791 (0.728–0.845)75.4%73.7%59.8%85.2%2.860.33<0.001

The diagnostic cutoff values of serum AFP and AFU were 42.34 ng/mL and 13.94 mU/mL, respectively.