Consider that in a retrospective cohort study involving job type and heart disease among railroad workers, the following data was obtained. Note that job type was used as a surrogate marker for physical activity.  Clerks have a sedentary job whereas track workers have a physically demanding job.                                                                           Heart Disease   Job type                                               yes                                         no   Clerk                                                      50                                           500 Tracks worker                                       22                                           390   Calculate a measure of association between these variables Calculate the attributable risk (AR) per 100 Calculate the attributable-risk percent Calculate the population attributable-risk (PER 100)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Consider that in a retrospective cohort study involving job type and heart disease among railroad workers, the following data was obtained. Note that job type was used as a surrogate marker for physical activity.  Clerks have a sedentary job whereas track workers have a physically demanding job.

 

                                                                        Heart Disease

 

Job type                                               yes                                         no

 

Clerk                                                      50                                           500

Tracks worker                                       22                                           390

 

Calculate a measure of association between these variables

Calculate the attributable risk (AR) per 100

Calculate the attributable-risk percent

Calculate the population attributable-risk (PER 100)

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consider that in a retrospective cohort study involving job type and heart disease among railroad workers, the following data was obtained. Note that job type was used as a surrogate marker for physical activity. Clerks have a sedentary job whereas track workers have a physically demanding job.

 

 

Heart Disease

 

Job Type

Yes

No

 

 Clerk

50

500

 

 Tracks Worker

22

390

a)Calculate a measure of association between these variables?

b) Interpret the results in Question a?

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