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st: RE: posting on behalf of Jill Huppert


From   "Sayer, Bryan" <BSayer@s-3.com>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: posting on behalf of Jill Huppert
Date   Thu, 3 Oct 2002 10:45:14 -0400

Send me the COMPLETE SUDAAN commands and I'll tell you if it is exactly
replicable in Stata or not.

Bryan Sayer
Statistician, SSS Inc.
bsayer@s-3.com

-----Original Message-----
From: baum [mailto:baum@bc.edu]
Sent: Thursday, October 03, 2002 10:37 AM
To: StataList
Subject: st: posting on behalf of Jill Huppert


Hi, Statlisters.
I hope you can help.
I have been exploring a publically avail dataset (NHAMCS), which includes 
all weighting variables, and their documentation says I should be able to 
get accurate estimates and SE using STATA.
However, my statistical colleague uses SUDAAN. I have been able to match 
her point estimates, but not SE.
We discovered that she uses many more weighting variables in SUDAAN than 
STATA requires.

So my command looks like:

svydes:
pweight: patwt
strata:stratm1
PSU: psum

xi: svylogit outcome var1 var 2 i.var1*var2 patwt, str(stratm1) 
psu(psum)sub(sample) or

Wheras in SUDAAN, Jane uses all of the following:
 stratm psum subfile prostrat su poppsum popsu popvism popprovm
( and sets levels)

Am I missing the finite pop ct variable? (fpc)
Anyone else use STATA for NHAMCS?

Can Stata handle interaction terms in svy data?

Many thanks.
Jill Huppert

________________________________________________________________________
Christopher F Baum, Boston College Economics, Chestnut Hill MA 02467 USA
baum@bc.edu                       http://fmwww.bc.edu/ec-v/baum.fac.html
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