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Sensitivity, specificity and predictive values of Widal and stool culture in the diagnosing typhoid fever using blood culture as a standard method
| Test | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Kappa test |
|---|---|---|---|---|---|
| Stool | 31.3 | 91.5 | 29.4 | 92.2 | 0.222 |
| Widal | 81.2 | 18.3 | 10.1 | 89.7 | 0.01 |
