Suppose my results comes out like this,
<40% >40% Total No disease 131 75 206 Have disease 27 6 33 239 My odds ratio: 27/(27+131))/(131/(27+131)) = 0.206 I want to calculate the confidence interval for it. Mike On Tue, Aug 14, 2012 at 2:52 PM, Nordlund, Dan (DSHS/RDA) < nord...@dshs.wa.gov> wrote: > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of C W > > Sent: Tuesday, August 14, 2012 11:18 AM > > To: r-help > > Subject: [R] What package to use to calculate odds ratio and the > > confidence interval? > > > > Hi list, > > I am trying to calculate the sensitivity, specificity, and odds > > ratio(and > > confidence interval). > > Say, my data looks like this > > > > 42.53, 37.56, 40.51, 32.67, 38.19, 81.74, 41.55, 68.94, 59, 63, 54.13, > > 48.85, 50.46, 51.78 > > > > Is there any packages in R that does this? Espeically the odds ratio > > confidence interval. > > > > Mike > > You need to provide more information than you have. The odds of > something happening is the probability of it happening divided by > (1-probability). To calculate the odds ratio, you need to have odds for > two different groups. I suspect you need to get some local statistical > assistance on these concepts before you will get much help on R packages > and functions. > > Dan > > Daniel J. Nordlund > Washington State Department of Social and Health Services > Planning, Performance, and Accountability > Research and Data Analysis Division > Olympia, WA 98504-5204 > > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
