This package provides an Rcmdr GUI extension plug-in for Evidence Based Medicine calculations. The purpose of this GUI extension was to improve teaching in the use of Evidence Based Medicine calculations. The interface allows for computing diagnostic medical indicators: sensitivity, specificity, diagnostic accuracy, Youden's index, positive predictive value, negative predictive value, positive likelyhood ratio, negative likelyhood ratio, number needed to diagnose; prognosis medical indicators: relative risk, atributable risk, odds ratio; therapeutic medical indicators: absolute risk reduction, number needed to treat, relative risk reduction, relative risk, odds ratio. Also the interface allows computing the post-test probability from a pre-test probability and the likelyhood ratio.

fncEBMPostTest
(Package: RcmdrPlugin.EBM) :
Computes post test probability to have a dissease based on the pre-test probability and the likelihood ratio of the diagnostic test

This dialog box permits you to define the probability of a patient to have a disease before performing a diagnostic test (pre-test probability), and the likelihood ratio of the diagnostic test. Based on these two, the post-test probability to actually have the disease is computed.

● Data Source:
CranContrib
● Keywords: post-test probability
● Alias: fncEBMPostTest
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