Table 3

Assay disagreement by McNemar's test comparing two assays (n = 40)c

ELISPOT-MNT resultPRNT result (no.)Total no. of results
PositiveNegative
Positivea22224
Negativeb11516
Total231740
  • a IC50, ≤50 μg/ml.

  • b IC50, >50 μg/ml.

  • c Significance level (P = 1.000) is a statistical measure of the assay disagreement determined using McNemar's test. Using the PRNT as a reference, the sensitivity and specificity of ELISPOT-MNT were 95.6% (22/23) and 88.24% (15/17), respectively.