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Retired NBME 16 Answers

nbme16/Block 3/Question#46 (reveal difficulty score)
A study is conducted to assess 32 patients in ...
31 ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: biostats

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submitted by โˆ—cassdawg(1781)
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This has to do with incidence of the disease.

  • Incidence = number of new cases / total number AT RISK in a certain time period

In the first year, the incidence of the disease is 32/1000 = 3.2%

32 people are removed from the population for treatment, and we are assuming other variables remain the same meaning incidence remains the same. The new number of people infected in the next year will be 3.2% x AT RISK population:

  • 3.2% x (1000 - 32) = 30.976 ~ 31 people
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