Explain the difference between descriptive and analytic epidemiology. Give examples of how both types of study design are utilized in the field of environmental health.

PHHE 351 PC Public Health Environmental Epidemiology & Toxicology Questions

Week 2: Environmental Epidemiology

*Numbers correlate with end of chapter questions

7. Explain the difference between descriptive and analytic epidemiology. Give examples of how both types of study design are utilized in the field of environmental health. (1/2 point)

11. Name the study designs that are used for hypothesis testing and those that are used for generating hypothesis. (1/2 point)

 14. Explain why cross-sectional studies are defined as prevalence studies. Give an example of a cross-sectional study. (1/2 point) In a hypothetical study, 13 people who have asthma have a cat; 46 people who have a cat do not have asthma; 7 people who have asthma do not have a cat; and 77 people who do not have asthma do not have a cat. Calculate the odds ratio and evaluate whether asthma is associated with having cats. Calculate the relative risk and evaluate the association between asthma and having cats. (1/2 point)

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