Table 2. Seropositivity of serological tests grouped by immunoglobulin detected according to the proportions of the results.
| Antibodies detected | Rapid Test (n = 496) | % | ELISA (n = 496) | % | OR | IC 95% | P |
|---|---|---|---|---|---|---|---|
| IgM+ | 164 | 33.06 | 104 | 20.96 | 2.05 | 1.498 - 2.804 | 0.001 |
| IgM/IgG + | 122 | 24.60 | 102 | 20.56 | 1.55 | 1.121 - 2.156 | 0.008 |
| IgG + | 30 | 6.04 | 56 | 11.29 | 0.69 | 1.121 - 2.156 | 0.143 |
| Total positives | 316 | 63.70 | 262 | 52.77 | 1.56 | 1.216 - 2.021 | 0.000 |
| Total negatives | 180 | 36.30 | 234 | 47.20 | 0.63 | 0.494 - 0.822 | 0.000 |
| Predictive value* | |||||||
| Positive | - | 79.74 | - | 96.18 | - | - | - |
| Negative | - | 94.44 | - | 72.64 | - | - | - |
*Predictive value of positive and negative serology test results. (+) positive results.