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 What is the measure of association
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
What is the measure of association
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