Formula to calculate sensitivity of a screening test -
Ans. is 'a' i.e,, True positive/true positive + false negative Number of true positiveSensitivity = --------------------------------------------------------------------------------------Number of true positives + Number of false negative.N umber of true negativesSpecificity = ------------------------------------------------------------------------------------Number of true negative + number of false positives.
True positive/true positive + false negative
True negative/true positive + false negative
True positive/true negative - false positive
True negative/true negative + false positive
Screening for Disease