Re: st: Is it possible to retrieve logit transformed confidence intervals as displayed by svy tabulate using estpost?

["Roger B. Newson" <r.newson@imperial.ac.uk>]

I don't know about -estpost-. However, retrieving the confidence 
intervals output by -svy: tabulate- looks like a job for the -parmest- 
package, which you can download from SSC. If you install -parmest- and 
then type

help parmcip

then the online help for the -parmcip- option of the -parmest- package 
contains an example (the final example) of the use of -parmest- and 
-parmcip- to retrieve the confidence limits that you are looking for.

I hope this helps.

Best wishes

Roger

Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/

Opinions expressed are those of the author, not of the institution.

On 11/03/2013 17:58, McDermaid, Cameron wrote:
> Is there any way to retrieve the logit transformed confidence intervals as displayed by -svy: tabulate- when using estpost?
>
> e.g.  -estpost svy: tabulate var1 var2, proportion cv ci obs col format(%11.0g)-
>
> I can obtain most of the output I want using the following, however the confidence intervals are untransformed:
> - estout using output.txt, cells("b se ci_l ci_u") unstack-
>
> I'm also not able to extract the coefficient of variation but can calculate it easily enough using the standard error.  Transforming the confidence intervals manually seems impractical due to differences when compared to the values Stata calculates, perhaps due to the accumulation of rounding and the challenge of inputting the t critical value based on df.
>
> This is a "nice to have" because I could use the untransformed ci's, it's just not ideal.  I've perused Statalist and the reference docs for estpost and estout but haven't come across a way to do this.
>
>
> - cam
>
> Cameron McDermaid MHSc
> Epidemiologist
> Ottawa Public Health
> 100 Constellation Crescent 26-50
> Ottawa ON K2G 6J8
> vox 613-580-6744x15321
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