NBME Answers : smpate's page

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+2 visit this page (nbme20#26)

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To get this one right, you would have to know that one standard deviation away from the mean on a bell curve is 34% on either side. After that it would be another 13.5% (but memorizing that is low yield). Looking at the specified age group, we want to know how much is greater than the mean plus 1 standard deviation. Therefore, 50% (the mean) plus 34% (1 standard deviation) is 84%. The rest is 100-84 = 16.

I found this image online for clarity

http://www.mathandstatistics.com/wp-content/uploads/2014/06/Example1EmpiricalGraphNormal.jpg

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bbr Is the plus/minus sumbol always used for standard deviation? Or can it be used for confidence interval. +

+8 visit this page (nbme20#47)

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https://web.stanford.edu/dept/HPST/transplant/html/hla.html

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rockodude wow that was super helpful +

+1 visit this page (nbme20#14)

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From FA 2018 p. 258... Increase power and decrease beta (error) by increasing: + sample size + expected effect size + precision of measurement

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submitted by zpatel(36), visit this page

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https://webpath.med.utah.edu/CVHTML/CV127.html

check this out

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smpate Nice find, thanks! +

submitted by strugglebus(189), visit this page

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Lysine is used in elastin and collagen cross linking; it is cross linked by lysyl oxidase to make collagen fibers

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charcot_bouchard Thats my brother from UFAP mother +4

smpate but glycine and proline are used in elastin too. Seems like you'd have to know about desmosine though that's not in first aid. Or maybe you can infer lysine since it's charged and is probably more important in maintaining stability? +

adong the only thing we know about cross-linking is with LYSYL oxidase, hence lysine +5