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Table 3 Performance of the Well assay according to the reference results of the InTec assay

From: Evaluation of a new point-of-care oral anti-HCV test for screening of hepatitis C virus infection

Well oral anti-HCV assaySerum anti-HCV (InTec assay) (n = 1173)
Center 1 (n = 347)Center 2 (n = 343)Center 3 (n = 483)Centers 1–3Total
PositiveNegativePositiveNegativePositiveNegativePositiveNegative 
Positive, n1064927240343814452
Negative, n323452391322721700721
Total109238972462532304597141173
Positive coincidence rateb (%) (95% CI)97.25(91.57,99.29)94.85(87.82,98.09)94.86(91.17,97.12)95.42(92.98,97.08)
Negative coincidence rateb (%) (95% CI)98.32(95.47,99.46)97.15(93.98,98.75)98.70(95.92,99.66)98.04(96.65,98.88)
Consistencyb (%) (95% CI)97.98(95.81,99.10)96.50(93.92,98.05)96.69(94.65,97.99)97.02(95.87,97.86)
Kappa valueb0.9530.9140.9340.937
  1. Note: bPositive coincidence rate, negative coincidence rate, consistency and Kappa value were calculated based on serum HCV antibody test result detected using the InTec assay. n Number, 95%CI 95% confidence interval