EBM Calculator

Interpret study results fast

Free · Designed for iPad. Not verified for macOS.

Built to support your appraisal of medical evidence—EBM Calculator is fast, clear, and easy to use. Effect Size Calculator • Used for studies that examine the effect of a therapy or exposure • Calculate key measures for dichotomous outcomes: ◦ Absolute Risk Reduction (ARR) ◦ Number Needed to Treat (NNT) ◦ Risk Ratio (RR) ◦ Relative Risk Reduction (RRR) ◦ Odds Ratio (OR) • Includes 95% Confidence Intervals for every metric Diagnostic Test Calculator • Used for studies that evaluate the accuracy of a diagnostic test • Calculate core statistics: ◦ Sensitivity & Specificity ◦ Likelihood Ratios (LR+, LR–) ◦ Positive & Negative Predictive Values (PPV, NPV) • Includes 95% Confidence Intervals for all measures Post-Test Probability Calculator • Used to estimate the likelihood of disease after a test result • Input Sensitivity & Specificity or Likelihood Ratios • Visualize probability changes with an interactive Fagan Nomogram Save, Search & Share • Save unlimited results for future reference • Search, sort, and filter results to quickly find what matters • Share results as a PNG—ideal for Messages, email, and clean formatting • Export results as an .ebmc file to archive or send to other EBM Calculator users • Tap an .ebmc file to import results back into EBM Calculator Lessons • Explore lessons in Evidence-Based Medicine (EBM) • Reinforce core concepts in biostatistics and study design • Search lessons by title or keyword Guided Tutorials • Step-by-step tutorials walk you through every major feature • Access from the menu in each view or from Settings iCloud Sync • Saved results sync automatically across all your devices Have questions, feedback, or suggestions? Reach out to support@ebmcalculator.com

Ratings & Reviews

  • 5.0
    out of 5
    3 Ratings

Big update: iPad layout, iCloud sync, in-app tutorials, and more! • Full iPad layout with adaptive spacing and split-view support • Results now sync across all your devices through iCloud • In-app guided tutorials; access from the menu in each view or from Settings • In-app FAQ in Settings • New Settings menu • Manual import option in menu • "Update Saved Result" option when editing a previously saved result • Date Modified sort option in Saved Results • Reorganized menus across all views for consistency • Behind-the-scenes storage migration for iCloud sync • Performance enhancements and bug fixes

Version 1.6.0

The developer, David Stewart, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • David Stewart
    Size
    • 14.8 MB
    Category
    • Medical
    Compatibility
    Requires iOS 18.1 or later.
    • iPhone
      Requires iOS 18.1 or later.
    • iPad
      Requires iPadOS 18.1 or later.
    • Mac
      Requires macOS 15.1 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.1 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2024 David A. Stewart, MD
  • Developer Website
  • Privacy Policy

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