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st: significance test for change


From   P C <calicep@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: significance test for change
Date   Tue, 8 Dec 2009 10:33:32 -0800 (PST)

Hi 
I have a survey data set. In this variable I have a race/ethnicity variable, and a dependent variable (obesity which is a dichotomous variable: obese=1; not obese=0). I have two waves of data for obesity. 

At wave 1, I calculate percentage of obese respondents for each race/ethnic group. Then at Wave 2, I do the same thing. Now I want to know the change for the percentage of obese respondents for each racial group is significant or not. I also need to know the confidence interval of change. 

Can anyone tell me how I should write the code. Again, this is a survey data. I need include the design features. I svyset the data like this:

svyset psuscid, weight(gswgt) strata(region)

Thanks,

Alice


      
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