Degree of agreement between IgM test results.

Degrees of agreement between results of BNITM IgM IFA, EUROIMMUN IgM IIFT, BLACKBOX IgM ELISA, EUROIMMUN IgM ELISA and VectorBest IgM ELISA results based on serum samples from blood donors and CCHF patients with respect to phase of infection. Cohen’s κ is listed for every comparison. Dark green cells correspond to an almost perfect and perfect agreement, bright green cells correspond to a substantial agreement, pale green cells correspond to a moderate agreement and white cells correspond to a fair agreement.