In a cohort study, of the 100 exposed, 50 developed the disease and 50 did not.  Of the non-exposed, 25 developed the disease and 75 did not.  Show calculations. Set up the 2 x 2 contingency table for the above cohort study.  What is the relative risk for the cohort study?   What is the odds ratio (OR)? What type of association does the OR suggest

ENGR.ECONOMIC ANALYSIS
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In a cohort study, of the 100 exposed, 50 developed the disease and 50 did not.  Of the non-exposed, 25 developed the disease and 75 did not.  Show calculations.

  1. Set up the 2 x 2 contingency table for the above cohort study. 
  2. What is the relative risk for the cohort study?  
  3. What is the odds ratio (OR)?
  4. What type of association does the OR suggest? 
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