Re: [R] Confidence Intervals for Odds Ratios in multivariate logistic regression

2010-12-08 Thread Charles C. Berry
On Wed, 8 Dec 2010, S.M. Raghavan wrote: Hi all, I am trying to fit a logistic regression for a bivariate response using five independent variables in a stepwise procedure. My outputs look okay but does any one know (or is there any literature on) how the confidence intervals are calculated for

Re: [R] Confidence Intervals for Odds Ratios in multivariate logistic regression

2010-12-08 Thread David Winsemius
On Dec 8, 2010, at 11:59 AM, S.M. Raghavan wrote: Hi all, I am trying to fit a logistic regression for a bivariate response using five independent variables in a stepwise procedure. My outputs look okay but does any one know (or is there any literature on) how the confidence intervals a

Re: [R] Confidence Intervals for Odds Ratios in multivariate logistic regression

2010-12-08 Thread Bert Gunter
See McCullagh and Nelder's GLM book for details -- and also probably V&R's MASS for a concise summary, although I don't have it at hand and can't be sure it's there. Really, practically any book on GLM should have details. **HOWEVER** You should realize that all these references are "wrong" in the

[R] Confidence Intervals for Odds Ratios in multivariate logistic regression

2010-12-08 Thread S.M. Raghavan
Hi all, I am trying to fit a logistic regression for a bivariate response using five independent variables in a stepwise procedure. My outputs look okay but does any one know (or is there any literature on) how the confidence intervals are calculated for the reported odds ratios..? Thanks!