The Prevalence of a Chronic Disease That Affects Mostly Older

The prevalence of a chronic disease that affects mostly older individuals has been constant in a population for the last 15 years.  As a result of worsening economic conditions that have no effect on the disease itself, many young healthy individuals emigrate from the population.  Which of the following is the most likely effect of the emigration on the estimate of disease prevalence over the next few years?

A) The prevalence would decrease
B) The prevalence would increase
C) The prevalence would remain the same
D) It is not possible to determine the effect on prevalence from the information given

Correct Answer:

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