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Sensitivity and Specificity Calculator

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Sensitivity and specificity are terms used to describe the value of tests. This calculator will determine these values based on true positives, false positives, true negatives, and false negatives.

Mobile version for iPhone Sensitivity Specificity Calculator

  Disease Present No Disease
Positive test
a
b
Negative test
c
d

Sensitivity = a/(a+c)
Specificity = d/(b+d)
Positive Predictive Value = a/(a+b)
Negative Predictive Value = d/(c+d)

  Disease Present No Disease
Positive test
Negative test

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Copyright 1997-2008 Joseph K. Sunny, Jr. All rights reserved. For licensing options, please contact me at the e-mail address provided. Webpages on this site are for educational purposes only, please consult a professional in the field of interest, a physician or a stock broker. By using this site, you are agreeing to our Terms and Conditions. Privacy Policy.

About the site and its author: Joseph K. Sunny, Jr. MD. Most of the pages are created from my reading or clinical experience.

Contact me at joesunny@gmail.com if you have any suggestions or questions.
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