TABLE 6.
Diagnostic performance of combinations of antibody-based immunoassaysa
| Diagnostic test(s) | Sensitivity (%) | Specificity (%) | Agreement (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|
| ELFA-IgM | 25.7 | 100 | 75 | 100 | 72.6 |
| ISAGA-IgM | 25.7 | 100 | 75 | 100 | 72.6 |
| ELISA-IgA | 22.9 | 100 | 74 | 100 | 71.9 |
| Rec-ELISA-IgM (5 antigens) | 97.1 | 93.2 | 94.2 | 87.2 | 98.5 |
| ELFA-IgM + ISAGA-IgM | 25.7 | 100 | 75 | 100 | 72.6 |
| ELFA-IgM + ELISA-IgA | 28.6 | 100 | 76 | 100 | 73.4 |
| ISAGA-IgM + ELISA-IgA | 28.6 | 100 | 76 | 100 | 73.4 |
| ELFA-IgM + Rec-ELISA-IgM | 97.1 | 93.2 | 94.2 | 87.2 | 98.5 |
| ISAGA-IgM + Rec-ELISA-IgM | 97.1 | 93.2 | 94.2 | 87.2 | 98.5 |
| ELISA-IgA + Rec-ELISA-IgM | 97.1 | 93.2 | 94.2 | 87.2 | 98.5 |
a
PPV, positive predictive value; NPV, negative predictive value.