***cross-posted***
Hello, everyone. Apologies for the delay in posting this. I was looking for an online calculator that shows the percentage lost to follow-up, and perhaps do a worst- and best-case sensitivity analysis. Dr. Rod Jackson of the University of Aukland pointed out a calculator that copes with drop outs, although it doesn't do a sensitivity analysis. (See why I like to post questions to medical librarian listservs in multiple countries?) They hope to finish a user's guide for the calculators by the end of the year. These calculators are downloadable from: http://www.epiq.co.nz Scroll down and click on Episheet. You'll need to allow Macros in order for the Excel program to work. (Graphpad, also linked from their site, also has some fab calculators.)
Please feel free to pass this email along.
Take care,
Tanya
Tanya Feddern, MLIS, AHIP, MOT, OTR/L
http://www.geocities.com/nqiya/EBMbib.html
http://www.geocities.com/nqiya/index.html
Evidence-Based Medicine Assistant Professor; Reference & Education Services Librarian
University of Miami Leonard M. Miller School of Medicine, Louis Calder Memorial Library
> -----Original Message-----
> From: Feddern, Tanya
> Sent: Wednesday, December 22, 2004 11:25 AM
> To: AliaHEALTH; Canmedlib; Evidence-based health; medlib; MLA-EBHC
> Subject: Online calculator for 5 & 20followup rule & sensitivity analysis?
>
> Hello, everyone. There's a few nifty online calculators I use for EBM, such as Alan Schwartz's EBM & Decision Tools http://araw.mede.uic.edu/~alansz/tools.html and GraphPad QuickCalcs http://www.graphpad.com/quickcalcs/index.cfm. However, I'm looking for a calculator whereby I can plug in the numbers of patients who completed or dropped out of the study and have the calculator calculate the percentage lost to followup. I'd also be great if the calculator could do a sensitivity analysis of the worst- and best-case scenario. Yes, I can do all this by pulling out my calculator, but I'd rather use an online calculator that prompts me where to plug in the numbers. Another benefit of an online calculator is that my students can print out these calculations for their assignments, especially if shown in a narrative form like the calculators above.
>
> Please feel free to forward this post. I'll summarize to the lists.
>
> Take care,
>
> Tanya
> Tanya Feddern, MLIS, AHIP, MOT, OTR/L
> http://www.geocities.com/nqiya/EBMbib.html
> http://www.geocities.com/nqiya/index.html
> Evidence-Based Medicine Assistant Professor; Reference & Education Services
> Librarian University of Miami School of Medicine, Louis Calder Memorial Library
>
>
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