Numerator in calculating positive predictive value -: (A) True positive, (B) False positive, (C) True negative, (D) False negative
Answer is A. Ans. is 'a' i.e., True positive Sensitivity =Number of true positive--------------------------------------------Number of true positives + Number of false negative Specificity =Number of true negatives--------------------------------------------Number of true negative + number of false positives. Positive predictive value = -True positive--------------------------True positive + False positive Negative predictive value =True negative--------------------------True negative + False negative