What is the difference between a prevalence rate and incidence rate

What is the difference between a prevalence rate and incidence rate

  1. RATES – What is the difference between a prevalence rate and incidence rate? When do you use each of them?
  2. SMALL N –  In reading articles and documents with a critical eye, when you see rates for small populations, N=20, what should you be concerned about, and why?
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Prevalence rates are use to indicate the specific number of people in a population that have a certain decease at any one particular point and time. Incidence rates on the other hand are rates used to show the number of new cases of diseases…
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