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Re: st: Comparing proportions using survey data

From   Austin Nichols <>
Subject   Re: st: Comparing proportions using survey data
Date   Tue, 13 Apr 2010 13:52:53 -0400

Omar <> :

webuse nhanes2, clear
g north=region==1
svy:tab north highbp, row se
test _b[p12]=_b[p22]

insufficient imprecision?

On Tue, Apr 13, 2010 at 1:38 PM,  <> wrote:
> Folks,
> I have individual-level survey data (n=294).  I would like to compare
> the proportions of responses to one question (a binary variable) across
> two regions: north (n=154) and south (n=140).
> I believe I should treat the two regions as independent samples. The
> survey sample design is a cluster sample stratified by region so that no
> individuals in the sample from the north region appear in the sample
> from the south region.
> Stata's prtest command does not support the survey (svy) command.  How
> may I measure the significance of the difference between the proportion
> of responses of northerners against the proportion of responses of
> southerners - whilst taking into account the survey design effects?
> I posted a similar query earlier but with insufficient imprecision.
> Practical advice much appreciated.
> Cheerio, Omar

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