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Table 1 Kappa values for calculating agreement between COX-I PCR and CSP ELISA for 9–15 dpi

From: Methodological issues on evaluating agreement between two detection methods by Cohen’s kappa analysis

Body part

CSP ELISA

k value

COX-I PCR

     

 Head and thorax

 

Positive

Negative

Total

k = 0.312

(k* = 0.299)

 

Positive

84

101

185

 

Negative

5

78

83

 

Total

89

179

268

 Abdomen

 

Positive

Negative

Total

k* = 0.304

 

Positive

79

97

176

 

Negative

6

83

89

 

Total

85

180

265

 Head and thorax + abdomen

 

Positive

Negative

Total

k* = 0.302

 

Positive

163 (84 + 79)

198 (84 + 79)

361

 

Negative

11 (5 + 6)

161 (78 + 83)

172

 

Total

174

359

533

  1. The data are cited from the article published by Hendershot et al. [1] and underwent modification
  2. k in the table is the kappa value calculated by Hendershot et al., and k* is the kappa value calculated by us.