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. 2015 Nov;110(7):936–944. doi: 10.1590/0074-02760150284

TABLE II. Kappa coefficient of agreement between the serological diagnostic tests for Trypanosoma cruzi exposure.

Diagnostic test Kappa Z p
Rapid test - ELISA Winner 0.731 5.27 < 0.00001a
Rapid test - IFAT 0.865 6.24 < 0.00001a
IFAT - ELISA Winner 0.751 5.36 < 0.00001a
Rapid test - IFAT - ELISA Winner 0.781 9.67 < 0.00001a

a: statistically significant (p < 0.05); IFAT: immunofluorescence antibody test.