Use the answers provided to answer. Include a written summary of your interpretation of the results. In addition, provide your recommendation to the state legislature with a brief explanation as to why you feel it is the best option for implementing public health policy for screening among the target population. Suppose that you are part of a team that serves as a body of experts to provide recommendationsto state legislators and local public health officials. Your team analyzes and interprets informationin order to guide best-practice decisions for state-wide public health policy and program planning.Recent research has surfaced regarding the potential of a new screening test for lead poisoningamong children. While the current gold standard screening test is extremely good at producingcorrect results, it is expensive and involves the collection of arterial blood, which is highly invasiveand not well-tolerated among children. The new screening test, on the other hand, is much cheaperto administer and only requires simple finger pricks for the collection of venous blood, which ismuch preferred among children. However, as shown in the following study results, the venousblood test is not as good at producing correct results with regard to lead poisoning among childrenas compared to the arterial blood test.Positive VenousBlood TestNegative VenousBlood TestTotalLead Poisoning(Positive ArterialBlood Test)445244(True positive) (False positive)Sensitivity=55256(False negative) (True negative)500(Total disease)No LeadPoisoning(NegativeArterial BloodTest)Specificity-500(Total non-disease)TotalGiven the development of a new, cheaper, less invasive screening test for lead poisoning, the stateis considering public policy that would mandate universal screening with the venous blood testamong the general population of children as a requirement for kindergarten entry. Work with yourteam to analyze and interpret the information provided in order to make a recommendationregarding this policy. It may help to consider the following questions:445445 + 55689(Total testpositive)3111) What is the validity (sensitivity and specificity) of the venous blood test and what dothese measures mean?(Total testnegative)Sensitivity - the ability of the venous blood screening test to correctly identify childrenwith lead poisoning1,000(Total)Number of true positivesNumber of true positives + Number of false negatives256256 +24489%Of the children with lead poisoning, 89 % tested positive on the venous blood screeningtestSpecificity - the ability of the venous blood screening test to correctly identify childrenwithout lead poisoningNumber of true negativesNumber of true negatives + Number of false positives= 51.2%Of the children without lead poisoning, 51.2 % tested negative on the venous bloodscreening test Number of true positivesNumber of true positives + Number of false negativesSensitivity=445445 +5589%of the children with lead poisoning, 89 % tested positive on the venous blood screeningtestSpecificity - the ability of the venous blood screening test to correctly identify childrenwithout lead poisoningSpecificity=Number of true negatives.Number of true negatives + Number of false positives256256 +244= 51.2%Of the children without lead poisoning, 51.2 % tested negative on the venous bloodscreening test2) What is the predictive value (positive and negative) of the venous blood test and what dothese measures mean?Positive predictive value (PPV) - the ability of the venous blood screening test to producea positive result among children with lead poisoningPositive predictive value== 64.5%True positivesTrue positives + false positives445445 +244Of the children who tested positive on the venous blood screening test, 64.5 % had leadpoisoningNegative predictive value (NPV) - the ability of the venous blood screening test toproduce a negative result among children without lead poisoningNegative predictive value=True negativesTrue negatives + false negatives256256 +55= 82.3%Of the children who tested negative on the venous blood screening test, 82.3 % did nothave lead poisoning

Question

Accepted Answer

Given information:

Lead Poisoning
No Lead Poisoning
Total

Positive Venous Blood Test
445
244…