Medi-Mouse 2x2 Tables

You may change any of the values in the table OR change any of the values for sensitivity, specificity, and prevalence. If you change table values, the sensitivity, specificity, prevalence etc. will be recalculated. If you change sensitivity, specificity, or prevalence, the table values will be recalculated using a total subject number of 1000.

 

Gold Standard
+ -
Test + a b 0
- c d 0
      0       0 0 = Total Number of Subjects

Sensitivity     a/(a+c) %
Specificity     d/(b+d) %
Prevalence     (a+c)/(a+b+c+d) /
Positive Predictive Value     a/(a+b)     0 %
Negative Predictive Value     d/(c+d)     0 %
Accuracy     (a+d)/(a+b+c+d) 0 %

This page last updated 14 July 2018