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Table 5 Diagnostic performance of GDF-15 as a marker of liver fibrosis for discriminating different groups

From: Growth differentiation factor 15: an emerging diagnostic biomarker of liver fibrosis in chronic hepatitis C patients

GDF-15(ng/L) for discriminating HCV patients’ group from the control group

Cut-off

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

EFF (%)

AUC

150

96.7

98.2

96.7

98.2

97.6

0.99

GDF-15(ng/L) for discriminating subgroup I patients from control group

Cut-off

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

EFF (%)

AUC

150

100

96.7

100

94.7

97.9

0.798

GDF-15(ng/L) for discriminating subgroup І (F0–F1) patients from subgroup II (F2)

Cut-off

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

EFF (%)

AUC

400

66.7

76.9

80.8

62.5

71.0

0.694

GDF-15(ng/L) for discriminating subgroup І (F0–F1) patients from subgroup III (F3–4)

Cut-off

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

EFF (%)

AUC

220

27.8

95.8

83.3

63.9

66.7

0.687

GDF-15(ng/L) for discriminating subgroup II (F2) patients from subgroup III (F3–F4).

Cut-off

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

EFF (%)

AUC

420

54.2

69.2

76.5

45.0

59.5

0.508

  1. AUC area under the curve, NPV negative predictive value, PPV positive predictive value, EFF efficiency