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Fictional table from literature.
| Disease Status |
Total | ||
|---|---|---|---|
| Glioma Present | Glioma Absent | ||
| Test Result | |||
| Positive | 29 | 2 | 31 |
| Negative | 1 | 48 | 49 |
| Total | 30 | 50 | 80 |
In this data, the prevalence of disease is P(D) = 30/80 = 0.375; the sensitivity is P(Test positive | Glioma present) = 29/30 = 0.967; the false positive rate is P(Test positive | Glioma absent) = 2/50 = 0.04. See Table 2 for formulas.
