Table 3

Inter-test agreement between assays calculated by McNemar's and Cohen's Kappa analysis

McNemar's test Yates correction

Cohen's Kappa


Test comparison

P

κ *

95% CI


BBA-TOX vs. E1-TOX

< 0.001

0.676

0.607-0.744


BBA-TOX vs. E2-TOX

0.01

0.802

0.746-0.857


BBA-TOX vs. E3-TOX

0.06

0.932

0.900-0.966


E1-TOX vs. E2-TOX

< 0.001

0.752

0.690-0.814


E1-TOX vs. E3-TOX

< 0.001

0.723

0.658-0.787


E2-TOX vs. E3-TOX

0.233

0.797

0.740-0.853


BBA-TRI vs. E-TRI

< 0.001

0.880

0.835-0.925


Inter-test agreement calculations comparing between dichotomized results of tests. P, probability; κ, Cohen's Kappa value; 95% CI, interval at a 95% confidence; BBA-TOX, T. gondii antigen coupled bead-based assay; E1-TOX, RIVM in-house T. gondii ELISA; E2-TOX, Safepath T. gondii ELISA; E3-TOX, ID-VET T. gondii ELISA; BBA-TRI, T. spiralis antigen coupled bead-based assay and E-TRI, Safepath T. spiralis ELISA. * indicates that all values were statistically significant (P < 0.001)

Bokken et al. BMC Veterinary Research 2012 8:36   doi:10.1186/1746-6148-8-36

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