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Re: st: Requested change for -ci-


From   Fred Wolfe <fwolfe@arthritis-research.org>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Requested change for -ci-
Date   Sun, 15 Aug 2004 04:32:13 -0500

As a follow-up comment to my email for Stata Corp, I received an email from Juul Svend indicating that Juul had emailed Stata about these points and others. One point that Juul emphasized was to include the count in the output, I want also to emphasize this. Although one can recover the count from r(N), this cannot be done if ci is run with the -bys- prefix. These would be very useful fixes.

Thanks,

Fred

At 05:58 AM 8/14/2004, you wrote:

-ci- displays exposure time as an integer. This is not always desirable, as in the instance when exposure time has been divided by 1000 so that output will be in 1000 person-years.

In the example below, the only way to get exact exposure time is to run the analyses by years and by 1000 years.

Perhaps Stata Corp might consider presenting exposure in more details than just integer. Also useful would be to add a format option to format the # of decimal places overall.

Even more useful would be an option to express the output with different divisors so that it would be presented in persons-units, 100 person units, 1000 person units, etc.


-- Poisson Exact --
Variable | Exposure Mean Std. Err. [95% Conf. Interval]
-------------+---------------------------------------------------------------
pulmhosp2 | 7 40.35625 2.3698 35.8447 45.2785


Variable | Exposure Mean Std. Err. [95% Conf. Interval]
-------------+---------------------------------------------------------------
pulmhosp2 | 7186 .0403562 .0023698 .0358447 .0452785



Thanks,

Fred Wolfe




Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
Tel (316) 263-2125 Fax (316) 263-0761
fwolfe@arthritis-research.org


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Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
Tel (316) 263-2125     Fax (316) 263-0761
fwolfe@arthritis-research.org


*
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*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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