Table 3: Evaluation of the reliability to detect T. cruzi antibodies, using ELISA technique with SODe CRU antigen, in 540 sera of children from the state of Queretaro (Mexico). The values given are estimated with Western Blot as the comparator.

ELISA/SODe CRU
Sensitivity 94%
Specificity 98%
Positive predictive value 98%
Negative predictive value 98%
Kappa index 0.95