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st: testing differences of proportions

Subject   st: testing differences of proportions
Date   Fri, 8 Aug 2003 17:35:35 +0200

Dear Statalisters-

I need to find a test to evaluate whether the difference of proportions by
groupvar is statistically significant. 
Specifically, my variable of interest is a 0-1 variable, 1 for children that
died before the age of 1 and 0 otherwise. I want to see if the proportion of
deaths that i get for the first income quintile of the populations is
different from the proportion for the 5th quintile.  
Do you know of any reference on line that i could read for this? And, is
there a command on STATA that allows me to do this directly? (something
equivalent to the ttest but for dichotomous variables)

thanks a lot in advance...


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