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Re: st: RRR with CI from logit model

From   "maartenbuis" <[email protected]>
To   [email protected]
Subject   Re: st: RRR with CI from logit model
Date   Mon, 01 Nov 2004 09:41:48 -0000

Dear michael,

Two remarks: First, you do not need -lincom- to get the odds ration
after al logit model, you can just do - logit y x, or -, or -
logistic y x -. Second, you can confidense intervals of relative risk
ratios with -nlcom-.


--- In [email protected], Michael Ingre <Michael.Ingre@i...>
> I have estimated a logit model and would like to present Relative
> Ratios (RRR) comparing the risk at different levels of a scale used
> a covariate in the model. Odds Ratios are easily calculated with
> -lincom-. RRRs are also easily calculated by just taking the ratio
> between predicted probabilities for different levels of the scale.
> is also quite straight forward to calculate a confidence interval
> the predicted probabilities. But how do I calculate Confidence
> Intervals of the risk ratios?
> Thanks
> Michael

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