Table 8. The relationship between prevalence and the positive and negative predicted values of the IHC test.
IHC Test of Sensitivity: 83%, Specificity: 97%
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IHC Test of Sensitivity: 83%, Specificity: 100%
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---|---|---|---|---|
Hypothetic Prevalence of IBD (n=94) | PPV | NPV | PPV | NPV |
5% | 57% | 99% | 100% | 99% |
15% | 79% | 96% | 100% | 96% |
64% | 98% | 77% | 100% | 77% |
80% | 98% | 58% | 100% | 59% |
PPV: Positive predicted value; NPV: Negative predicted value.