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Table 1 Sensitivity, specificity, negative and positive predictive values and kappa index for anti-HCV, HBsAg and anti-HBs detection in DBS samples using ECLIA

From: Usefulness of automated assays for detecting hepatitis B and C markers in dried blood spot samples

  Anti-HCV Anti-HBc HBsAg
Value (%) IC (%) Value (%) IC (%) Value (%) IC (%)
Sensitivity 95.37 89.53–98.48 86.49 80.70–91.06 94.37 86.20–98.44
Specificity 99.45 98.04–99.93 97.76 95.63–99.03 98.99 97.09–99.79
Positive predictive value 98.10 92.82–99.52 95.24 90.96–97.55 95.71 87.85–98.57
Negative predictive value 98.64 96.87–99.42 93.32 90.65–95.26 98.66 96.61–99.48
Kappa index 0.957 0.926–0.988 0.861 0.815- 0.907 0.938 0.893–0.983