Table 5 Synthesis of diagnostic indices for HCC subgroup 1
Indexα-Fetoprotein aloneProteasome aloneProteasome and α-fetoprotein
No%No%No%
Matched3055.64888.93463.0
    no HCC ( =  specificity)1854.53297.01751.5
    HCC low mass ( =  sensitivity)1257.11676.21781.0
Positive predictive value44.494.151.5
Difference with positive prevalence5.555.212.6
Negative predictive value66.786.581.0
Difference with negative prevalence5.625.419.9
χ2 test0.3128.544.41
    p Value0.577<0.0010.036
Youden’s index, J0.1160.7320.325
  • HCC, hepatocellular carcinoma.