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)
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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