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25 biostats equations - kruno
#11
@ miacarmel no problem... im glad to help
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#12
Thank you Kruno Smile
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#13
i'm attempting to make videos for each of these equations. starting with sensitivity, perhaps these short lectures can help you learn how to calculate it....

if you know the number of true positives and the total number of people with the condition....
https://www.youtube.com/watch?v=8PMCk-Y64wo

if you know the prevalence of the disease, number of positive tests, and the positive predictive value...
https://www.youtube.com/watch?v=SvIXgfoMVC8
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#14
how to calculate....

SPECIFICITY

...if you know the number of true negatives and the total number of people without the disease
https://www.youtube.com/watch?v=Td8NQn1md64

...if you know the prevalence of the disease, the number of negative tests, and the negative predictive value
https://www.youtube.com/watch?v=k_WTSh4CjYI
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#15
@miacarmel i made a sample table walk-through video showing one way of determining the values for A, B, C, D. you can find it on youtube here... https://www.youtube.com/watch?v=ynUo3qSa_mc
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