Table 2 Spearman correlation analysis within positive and negative results for the three commercial bovine ELISA kits tested, compared two by two.

Kit A and B

Negative

(<88^th rank for Kit B and <92^nd rank for Kit A)

0.032

0.767

Positive

(>90^st rank for Kit B and >92^nd rank for Kit A)

0.247

0.049

Kit A and C

Negative

(<91^st rank for Kit C and <92^nd rank for Kit A)

-0.003

0.974

Positive

(>91^st rank for Kit C and >92^nd rank for Kit A)

0.213

0.093

Kit B and C

Negative

(<88^th rank for Kit B <91^st rank for Kit C)

0.481

<0.001

Positive

(>90^th rank for Kit B and >91^st rank for Kit C)

0.593

<0.001