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Assuming 320,000 individuals develop Lyme disease each year, what is the attributable risk for the cumulative incidence of Lyme disease that comes from tick bites, if 300,000 of the new cases reported each year come from tick bites?
A. 93.75%
B. 16.00%
C. 6.67%
D. 6.25%

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Histrionicus

Answer:

The correct answer is - A. 93.75%

Explanation:

In the given question, there are total individuals with disease = 320000

in which, Disease in exposed people = 300000

the Disease in unexposed in people = 20000

Therefore, the probability of disease in exposed people would be

= Disease in exposed people/the Disease in unexposed in people

= 300000)/320000

= 0.9375 * 100

= 93.75%

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