Research Article
Comparative Evaluation of Different Test Combinations for Diagnosis of Mycobacterium avium Subspecies paratuberculosis Infecting Dairy Herds in India
Table 3
Comparative diagnostic potential of different test combinations.
| Test combinations | Kappa values | Strength of agreement | Relative sensitivity (95% CI) | Relative specificity (95% CI) |
| Serum ELISA–milk ELISA | 0.325 | Fair | 0.470 (0.297–0.648) | 0.870 (0.810–0.917) | Faecal Microscopy–faecal PCR | 0.241 | Fair | 0.677 (0.554–0.788) | 0.500 (0.381–0.608) | Milk ELISA–milk PCR | 0.682 | Substantial | 0.793 (0.650–0.890) | 0.938 (0.915–0.954) | Serum ELISA–faecal PCR | 0.677 | Substantial | 0.833 (0.719–0.907) | 0.844 (0.736–0.913) |
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<0.20, poor; 0.21–0.40, fair; 0.41–0.60, moderate; 0.61–0.80, substantial (good); and 0.81–100, almost perfect.
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