IT Quiz Answer – October 10, 2024
Answers from our weekly Intelligent Thursday quizzes!
Pop Quiz: October 10, 2024
Which of the following statements is correct?
a. Incidence is equal to prevalence times disease duration.
b. Prevalence is a measure of risk.
c. When cure rate of a disease goes up, prevalence goes down.
d. When death rate goes down, prevalence goes down.
e. None of the above are correct.
Answer: C. When cure rate of a disease goes up, prevalence goes down.
Explanation:
When cure rate improves, prevalence goes down. Here's a visual explanation of how this works. When more pebbles leave the vessel because they are cured, then the prevalence will go down.
Let’s go through the other statements together.
A) Incidence is equal to prevalence times disease duration. That’s incorrect. It’s the other way round: prevalence is equal to incidence times disease duration.
B) Prevalence is a measure of risk. No. Prevalence is a measure of disease burden. Incidence is a measure of disease risk.
D) When death rate goes down, prevalence goes down. This is also incorrect. When death rate goes down, more people with the disease will survive and therefore, prevalence will go up.
E) None of the above are correct. This is obviously also wrong since C is correct.
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