Learning Objectives
A. Learn to apply the main features of casecontrol design :
 Formulate research hypotheses
 Define your source population and the eligibility criteria for cases and controls
 Define your exposure and outcome of interest
 Describe methods of accrual for cases and controls
B. Employ steps in data analysis of casecontrol studies to analyze the data:

Calculate disease odds ratio
 Interpret your estimate

Calculate exposure odds ratio
 Interpret your estimate
 Explain why exposure odds ratio is identical to the disease odds ratio
C. Explain your findings and discuss problems in data analysis:
 Discuss the principles of proper selection of cases and controls

Discuss the relationship between odds ratio and
risk ratio