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Table 3 Results for the chi-squared test and kappa coefficients for the four Map detection methods

From: Evaluation of combined high-efficiency DNA extraction and real-time PCR for detection of Mycobacterium avium subsp. paratuberculosis in subclinically infected dairy cattle: comparison with faecal culture, milk real-time PCR and milk ELISA

 

HYDEqPCR

Faecal culture

Milk ELISA

HYDEqPCR

N

 

141

 

chi-squared

 

4.275

 

P

 

0.039

 

Kappa

 

0.059

 

Milk qPCR

N

91

91

91

chi-squared

0.289

0.841

0.575

P

0.591

0.359

0.448

Kappa

-0.027

0.084

-0.022

Milk ELISA

N

91

91

 

chi-squared

0.111

5.123

 

P

0.739

0.024

 

Kappa

0.002

0.107

 
  1. n: number of samples.
  2. p ≤0.05 indicates significant association between test results.
  3. Kappa coefficient value of 1.00 indicates perfect agreement and a value of 0.00 indicates that any agreement is no better than chance.
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BMC Veterinary Research

ISSN: 1746-6148

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