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Retired NBME 20 Answers

nbme20/Block 2/Question#33 (reveal difficulty score)
A study is conducted to assess the effect of ...
Lead-time ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: biostats

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submitted by โˆ—xxabi(293)
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Lead time bias is caused by early detection being confused with increased survival. early detection makes it seem as though survival has increased, but the natural history of the disease has not been impacted.

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srmtn  Lead time is the interval between the time of disease detection through screening and the time of disease recognition in the absence of screening. +1



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