EBM Stats Calc
calculate basic EBM stats
Free
1.2for iPhone, iPad and more
8.9
2 Ratings
Joshua D. steinberg
Developer
546.8 KB
Size
May 10, 2020
Update Date
Medical
Category
12+
Age Rating
Age Rating
EBM Stats Calc Screenshots
About EBM Stats Calc
Occasionally in medicine, we really need to "do the math". This app will help. EBM Stats Calc let's a clinician do calculations that are hard or impossible to do in one's head. A clinician can get NNT's (number needed to treat) from rates, percentages, or raw event and patient numbers. And a clinician can use sensitivity and specificity or likelihood ratios (LR+, LR-) to go from a pretest probability to posttest probability and positive predictive value and negative predictive value.
Although these calculators themselves are somewhat novel for apps, the unique tool in this app is for educators. Students and residents have a hard time understanding how the utility of a test can vary with pretest probability. Instead of saying it in words and hoping they get it, now you can demonstrate it. A test might perform well, giving good PPV and NPV, when pretest probability is in a certain range. But slide that pretest probability up or down and see the diagnostic utility change with the numbers flying right before your eyes. The tool also shows a student that in many cases, an imprecise estimate of pretest probability doesn't much matter. Different doctors might judge a clinical case to suggest likelihood of disease (pretest probability) of 40%, 50%, or 60%. The slider tool shows that the differences may not matter, and the test in mind will render good clarity regardless of differing opinions on pretest probability.
The app is written for clinicians, students, residents, and especially educators, in any discipline of medicine. As a clinician and educator myself, I would be grateful for feedback to make the tool better.
Although these calculators themselves are somewhat novel for apps, the unique tool in this app is for educators. Students and residents have a hard time understanding how the utility of a test can vary with pretest probability. Instead of saying it in words and hoping they get it, now you can demonstrate it. A test might perform well, giving good PPV and NPV, when pretest probability is in a certain range. But slide that pretest probability up or down and see the diagnostic utility change with the numbers flying right before your eyes. The tool also shows a student that in many cases, an imprecise estimate of pretest probability doesn't much matter. Different doctors might judge a clinical case to suggest likelihood of disease (pretest probability) of 40%, 50%, or 60%. The slider tool shows that the differences may not matter, and the test in mind will render good clarity regardless of differing opinions on pretest probability.
The app is written for clinicians, students, residents, and especially educators, in any discipline of medicine. As a clinician and educator myself, I would be grateful for feedback to make the tool better.
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What's New in the Latest Version 1.2
Last updated on May 10, 2020
Old Versions
updates links, updated for compatibility with latest iOS programming standards
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Version History
1.2
May 10, 2020
updates links, updated for compatibility with latest iOS programming standards
1.1
Jan 22, 2018
- reworked the layout to support iPhone X properly
- all other iPhones and iPads should see no evident changes
- but if something ain't quite right, do please let me know!
- all other iPhones and iPads should see no evident changes
- but if something ain't quite right, do please let me know!
1.0
Jan 4, 2018
EBM Stats Calc FAQ
Click here to learn how to download EBM Stats Calc in restricted country or region.
Check the following list to see the minimum requirements of EBM Stats Calc.
iPhone
Requires iOS 13.0 or later.
iPad
Requires iPadOS 13.0 or later.
iPod touch
Requires iOS 13.0 or later.
EBM Stats Calc supports English