[R] What package to use to calculate odds ratio and the confidence interval?

[Nordlund, Dan (DSHS/RDA)]

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at 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