USMLE Forum Archives - USMLE Step 1 - lep3
lep3
babbu5508 - 04-30-11 23:49
The prevalence of this condition is approximately 1:3000. Which of the following most accurately describes prevalence?
/ A. The disease risk in the exposed group divided by the disease risk in the unexposed group
/ B. The number of new cases divided by the total population at risk
/ C. The number of new cases in a population per unit time
/ D. The number of new cases subtracted from the total number of existing cases per unit time
/ E. The total number of cases in a population at a given time
babbu5508 - 04-30-11 23:49
The prevalence of this condition is approximately 1:3000. Which of the following most accurately describes prevalence?
/ A. The disease risk in the exposed group divided by the disease risk in the unexposed group
/ B. The number of new cases divided by the total population at risk
/ C. The number of new cases in a population per unit time
/ D. The number of new cases subtracted from the total number of existing cases per unit time
/ E. The total number of cases in a population at a given time
The correct answer and explanation will be available after you answer.
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#2
Re: lep3
babbu5508 - 05-15-11 01:13 My answer is: e.
The correct answer is E. Prevalence is the total number of cases in a population at a given time.It is the incidence times the duration
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