Predictive value of a positive test is defined as-
Ref:Parks 23rd edition pg 140 PPV = TP / (TP +FP) * 100 Predictive value reflects the diagnostic power of a test.
True+ve\/true+ve+false-vex100
True + ve\/ true + ve + false + ve x 100
False + ve \/ true + ve + false + ve x 100
False + ve \/ true + ve + false - ve x 100
Screening