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