Define the following key terms used in epidemiology:

Define the following key terms used in epidemiology:

Prevalence

Incidence

Attack rate

Point prevalence

2. You were recently hired as an epidemiologist at a county office. List and explain three measures that you would use to calculate a specific disease situation. In your view, why is it difficult to get accurate information about disease status in a population?

3. A study starts with 4,875 health people.  Over the next 2 years, 75 develop the disease. What is the incidence rate of disease over the study period? Show all work. 

4. In a survey of 1,150 women who gave birth in Maine in 2000, a total of 468 reported taking a multivitamin at least 4 times a week during the month before becoming pregnant. Calculate the prevalence of frequent multivitamin use in this group.

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