Re: st: age adjusting complex sample survey data

[Suzy <scott_788@wowway.com>]

Dear Thomas,

I spoke with the Stata staff recently and also a number of other well 
informed individuals at the CDC who use Stata. Stata does not currently 
have this capability.  In fact, the users of Stata  use SUDAAN software 
for  this portion of the analysis. We are waiting patiently for a Stata 
program!  There are a number of "us" out here using Stata and  working 
with complex survey data who have been trying to figure out  if  age 
standardization with complex survey data can be done. 
Someone told me that we can probably hand calculate our age adjusted 
prevalence estimates after we obtain our crude estimates by the 
age-specifed distribution. To expedite this - you can use Episheet by 
Kenneth Rothman (type in episheet in google. It's the first webpage that 
comes up). This is a free excel program that allows one to do direct 
standardization for up to 12 strata ( I believe). This program, by the 
way,  can do much much more!!

If you learn of anything further on this topic - do please pass it along 
to the statalist or to me direct!.

Hope this helps a bit.
Suzy

Thomas Torok wrote:


> I am using BRFSS (Behavioral Risk Factor Surveillance System) data and
> would like to create age-adjusted prevalence estimates for several subgroups
> with dissimilar age structures.
>
> I can easily create unadjusted prevalence estimates using svytab and I can
> control for age using svylogit to produce adjusted odds ratios, but that
> doesn't provide me with adjusted prevalence estimates.
>
> If these data were not complex survey data I would use the "dstdize"
> command, but I am not sure if that command can be used in this case.
>
> The CDC has published guidelines for age adjustment using the 2000 US
> population (http://www.cdc.gov/nchs/data/statnt/statnt20.pdf) and provides
> code for Sudaan, but I have been unable to find any comparable guidance for
> Stata.
>
> Suggestions?
>
> Thanks,
>
> Tom T�r�k
> E-mail: tjtorok@comcast.net
>
>
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