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Table 3 Comparison of different diagnostic tests (statistical analysis) taking the results of the serological examination (ELISA) as the gold standard

From: Comparison of different detection methods for Ascaris suum infection on Austrian swine farms

Reference

Liver inspectiona

Fecal examinationa

ELISA (positive + doubtful results considered as positive)

Sens: 23.5

Sens: 8.5

Spec: 87.5

Spec: 100

PPV: 92.3

PPV: 100

κ: 0.037

κ: 0.0025

P: 0.225

P: 0.138

ELISA (only positive results considered as positive)

Sens: 27.0

Sens: 9.0

Spec: 89.1

Spec: 96.4

PPV: 84.6

PPV: 91.0

κ: 0.114

κ: 0.035

P: 0.017

P: 0.204

ELISA (doubtful results excluded)

Sens: 27.0

Sens: 9.0

Spec: 87.5

Spec: 100

PPV: 91.7

PPV: 100

κ: 0.131

κ: 0.032

P: 0.060

P: 0.126

  1. aSens: sensitivity [%]; Spec: specificity [%]; PPV: positive predictive value [%]. P: Probability associated with κ