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Table 3 Test performance of binding to the produced antibodies immobilized in SPR system in comparison to conventional ulcer secretion cultures

From: In vitro model of production of antibodies; a new approach to reveal the presence of key bacteria in polymicrobial environments

SPR/culture

False positive (SPR)

True positive (culture)

False negative (SPR)

True negative (culture)

Total

Staphylococcus aureus

0

7

1

16

24

Enterococcus fecalis

2

1

0

21

24

  1. Sensitivity for Staphylococcus aureus was 87.5 %, specificity 100 %, PPV 100 % and NPV 94 %. Sensitivity for Enterococcus fecalis was 100 %, specificity 91.3 %, PPV 33.3 % and NPV 100 %