The nurse graphs the distribution of influenza cases by the time of onset of influenza. Which would be the result of this work?
A) Epidemic curve
B) Epidemiologic descriptive study
C) Incidence density
D) Incidence rate
Ans: A
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An epidemic curve is a graph that plots the distribution of cases by the time of onset of the disease. Epidemiologic descriptive studies are research studies designed to acquire more information about the occurrence and distribution of states of health, such as characteristics of person, place, and time. Incidence density is the use of a person-time denominator in the calculation of rates. A person-day reflects one person at risk for 1 day, and a person-year represents one person at risk for 1 year. Incidence rate is the measure of the probability that people without a certain condition will develop that condition over a period of time.
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