Q. 2 A study was conducted to study the association of coffee drinking andanxiety in a sample of adults. Among 12,500 coffee drinkers, 700 developedanxiety. Among the 16500 non-coffee drinkers, 250 cases of anxiety wereobserved.Display the data in 2 x 2 contingency table.Find relative risk, risk difference and odds ratio of anxiety associated withcoffee drinking. Interpret the results.Q. 3 We are given the following data for a city:Population of the city on March 30, 2020 = 183,000Number of new active cases of TB occurring between January 1 andJune 30, 2020 = 26Number of active TB cases according to the city register on January 1,2020 = 264Find the(1) Cumulative incidence of active cases of TB for the 6-month period;(ii) Prevalence of active TB as of June 30, 2020.Q. 4 Investigators enrolled 100 diabetics without eye disease in a follow-upstudy. The results of the first 3 years were as follows:Year 1:0 cases of eye disease detected out of 92; 8 lost to follow-upYear 2: 2 new cases of eye disease detected out of 80; 2 had died; 10 lost tofollow-upYear 3: 3 new cases of eye disease detected out of 63; 2 more had died; 13more lost to follow-up.Find the person-time incidence rate.

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Q. 2 A study was conducted to study the association of coffee drinking and anxiety in a sample of adults. Among 12,500 coffee drinkers, 700 developed anxiety. Among the 16500 non-coffee drinkers, 250 cases of anxiety were observed. Display the data in 2 x 2 contingency table. Find relative risk, risk difference and odds ratio of anxiety associated with coffee drinking. Interpret the results.

Q. 2 A study was conducted to study the association of coffee drinking and anxiety in a sample of adults. Among 12,500 coffee drinkers, 700 developed anxiety. Among the 16500 non-coffee drinkers, 250 cases of anxiety were observed. Display the data in 2 x 2 contingency table. Find relative risk, risk difference and odds ratio of anxiety associated with coffee drinking. Interpret the results.

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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