Please only answer 3.69 al. [11]). The lowest detection limit for dried blood spot coti-nine was 3.1 ng/mL. The data in Table 3.9 were presentedrelating dried blood spot cotinine determinations to umbilicalcord blood cotinine determinations.Suppose a cutoff of 25 ng/mL is proposed as a criterion fortesting positive based on dried blood spot cotinine levels.3.64 What is the sensitivity using this cut-point?3.65 What is the specificity using this cut-point?Suppose it is estimated based on a large sample of births inCalifornia that 20% of mothers smoke at the time of delivery.Suppose the screening test for detecting whether a mothersmokes at the time of pregnancy is based on a cutoff of 25ng/mL using dried blood specimens from the newborn.TABLE 3.9Cotinine Levelin DriedBlood (ng/mL)<3.13.14567800MaternalActiveSmoking = yes2000211MaternalActiveSmoking = noTABLE 3.10 Relationship between SCN levels andself-reported cigarettes smoked per week326221101Self-reportedcigarettes smokedin past weekNone1-45-14Distribution of Cotinine Level in Dried Blood Spots from Newborns by MaternalActive Smoking Status* close to the time of delivery among 428 babies delivered inCalifornia, 2001-200315-2425-4445+Cotinine Levelin DriedBlood (ng/mL)910111213≥14TotalSource: Based on the American Journal of Public Health, 71(12), 1320, 1981.Number ofstudents111637030MaternalActiveSmoking = yes2321857691271923*Maternal active smoking at the time of delivery was defined as cord blood levels of 210 ng/mL.Percent withSCN100 µg/mLMaternalActiveSmoking = no3000103373.34.36.729.636.865.2 Suppose the self-reports are completely accurate and arerepresentative of the number of eighth-grade students whosmoke in the general community. We are considering usingan SCN level 2 100 µg/mL as a test criterion for identifyingcigarette smokers. Regard a student as positive if he or shesmokes one or more cigarettes per week.*3.68 What is the sensitivity of the test for light-smokingstudents (students who smoke ≤ 14 cigarettes per week)?*3.69 What is the sensitivity of the test for moderate-smokingstudents (students who smoke 15-44 cigarettes per week)?*3.70 What is the sensitivity of the test for heavy-smokingstudents (students who smoke ≥ 45 cigarettes per week)?*3.71 What is the specificity of the test?*3.72 What is the PV of the test?

The sensitivity is given by Sensitivity=Pr(Test+|students who smoke 15−44cigarettes per week)

Answered: *3.69 What is the sensitivity of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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*3.69 What is the sensitivity of the test for moderate-smoking students (students who smoke 15-44 cigarettes per week)? *3 70 What in th

3.69 What is the sensitivity of the test for moderate-smoking students (students who smoke 15-44 cigarettes per week)? 3 70 What in th