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University Of Central Florida (UCF) HSC4501 Epidemiology Of Chronic Diseases Exam 1 Practice

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If a city has 2,000 people with a disease at a specific date, and the city population is 50,000, what is the point prevalence?
Correct Answer:
4%.
Explanation:
Point prevalence is the proportion of people who have the disease at a specific point in time, calculated as existing cases divided by the total population at that time. Here, 2,000 people are diseased out of 50,000 total residents. 2,000 divided by 50,000 equals 0.04, which is 4%. So the point prevalence is 4%. The other percentages would correspond to different counts (e.g., 0.4% would be about 200 cases, 2% about 1,000 cases, 40% about 20,000 cases), not the given numbers.

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