Dear Tanya,
You can you an online calculator at Sharon Straus's website:
http://www.cebm.utoronto.ca/practise/ca/statscal/
or you can download CATmaker (the full version is now free) from:
www.cebm.net,
Happy caclulating,
Paul Glasziou
At 01/02/2005, Feddern, Tanya wrote:
>***cross-posted***
>
>Hello, everyone. Please, I need your help. This site is good for getting
>the CI for NNT, NNH, and Sensitivity and Specificity:
>http://araw.mede.uic.edu/~alansz/tools.html This site is good for getting
>the CI for NNT and calculating the CI for a proportion, which you might do
>for a prognosis study: http://www.graphpad.com/quickcalcs/index.cfm This
>site is good for calculating OR and its CI:
>http://www.hutchon.net/ConfidOR.htm But I can't find an online calculator
>for RR *and* its CI. If anyone knows of one that's easy to use, please
>let me know.
>
>CI- Confidence Interval; NNT- Number Needed to Treat; NNH- Number Needed
>to Harm; OR- Odds Ratio; RR- Relative Risk
>
>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
Paul Glasziou
Department of Primary Health Care &
Director, Centre for Evidence-Based Practice, Oxford
ph: 44-1865-227055 www.cebm.net
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