Skip to main content

Table 3 Concordance between the VN test, DEXX PRRSV X3 Ab ELISA, M-A109-129 ELISA, M-A148-174 ELISA

From: Establishment of a peptide-based enzyme-linked immunosorbent assay for detecting antibodies against PRRSV M protein

  M-A109-129 ELISA M-A148-174 ELISA IDEXX PRRSV X3 Ab ELISA
+ Total + Total + Total
VN
 + 50 13 63 63 0 63 63 0 63
 – 2 82 84 9 75 84 28 56 84
Total 52 95 147 72 75 147 91 56 147
kappa coefficienta (95% CI) 0.7870 (0.7791-0.7949) 0.8772 (0.8710-0.8834) 0.6316 (0.6217-0.6453)
IDEXX PRRSV X3 Ab ELISA
 + 48 43 91 72 19 91    
 – 4 52 56 0 56 56    
Total 52 95 147 74 73 147    
kappa coefficienta (95% CI) 0.4020 (0.3972-0.4125) 0.7430 (0.7216-0.7634)    
  1. aThe significance of kappa coefficient value. < 0, no agreement; 0 to 0.20, slight agreement; 0.21 to 0.40, fair agreement; 0.41 to 0.60, moderate agreement; 0.61 to 0.80, substantial agreement; and 0.81 to 1.0, almost perfect agreement