Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Diagnostic Test Calculator Captures d'écran

iPad

iPhone

About Diagnostic Test Calculator

About the Diagnostic Test Calculator

This diagnostic test calculator is of value to clinicians and researchers who wish to understand the accuracy and reliability of a diagnostic test. The application can determine test characteristics including specificity, sensitivity and likelihood ratio. Easy to navigate input fields allow the user to analyse a diagnostic test quickly and effectively.

The results of the diagnostic test calculator display the post-test probability of disease given the pre-test probability of the characteristics of the specific diagnostic test. Results are shown as absolute values and also as an easy to use graph (nomogram) and summary table.

The app gives you a clear analysis and also, given a sample size, will show the confidence intervals clearly. The nomogram itself will display the probability that the patient actually has the disease after a positive or negative test.

This Diagnostic Test Calculator iPhone application is supported by a grant from Gilead Sciences Europe.

The calculations within the app are based on the open source implementation which can be found at http://araw.mede.uic.edu/cgi-alansz/testcalc.pl (Copyright (c) 2002-2007 by Alan Schwartz alansz@uic.edu).

Instructions

To get started, please input data into the fields provided. The nomogram will be shown with the correct plotted data once the “save” button is pressed.

Date of preparation: June 2012
Job Code: 131/IHQ/12-07//1350