In a population of 10000 people, the prevalence of a disease is 20%. The sensitivity of a screening test is 95% and specificity is 80%. The positive predictive value of the test will be -
(A) 45.70% (B) 54.30% (C) 15.30% (D) 98.50%
(B) In the given question,
Sensitivity = 95%
Specificity = 80%
Prevalence = 20%
Thus,