Analytic Epidemiology studies
Answer the questions below.
Question 1. Identify the study design as either ecologic or case-control:
The association between average unemployment levels and mortality from coronary heart disease was studied in counties in California.
A group of women who had been diagnosed with breast cancer was compared with a group of cancer-free women; participants were asked whether they used oral contraceptives in the past.
Question 2. Interpret the following values for an odds ratio (OR) or relative risk (RR).
OR = 1.0
RR = 0.25
OR = 3.2
You have been asked to study the effects of stress across the life span of people who have a close family member with HIV/AIDS. The study is to be from the time of diagnosis until the death of the family member. Which type of study design is most appropriate? Explain and justify the study design choice.
