[R] Relative Risk in logistic regression

[Kevin E. Thorpe]

On 01/30/2013 09:02 AM, nalluri pratap wrote:
> Relative risk = exp(coef(model))
>

Only if you fit using the log link.  Using the logit link, this gives 
odds ratios.

> --- On Wed, 30/1/13, aminreza Aamini <amin.r.fan at gmail.com> wrote:
>
>
> From: aminreza Aamini <amin.r.fan at gmail.com>
> Subject: [R] Relative Risk in logistic regression
> To: "R-help" <R-help at r-project.org>
> Date: Wednesday, 30 January, 2013, 4:19 PM
>
>
> Hi all,
> I am very grateful to all those who write to me
> 1) how i  can  obtain relative risk (risk ratio) in logistic regression in R.
> 2) how to obtain  the predicted risk for a certain individual using
> fitted regression model in R.
>
> Many thanks, in advance, for your help.
>
> Amin.
>
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-- 
Kevin E. Thorpe
Head of Biostatistics,  Applied Health Research Centre (AHRC)
Li Ka Shing Knowledge Institute of St. Michael's
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.thorpe at utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016