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Re: st: Epidemiological Tests


From   "Svend Juul" <SJ@SOCI.AU.DK>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Epidemiological Tests
Date   Fri, 23 Mar 2007 15:28:03 +0100

Bijay Kunar wrote:
 
I am facing some problem when analysing my data set. I have
a 1:2 case-control pairs data set. I can't decided myself
to which tests(McNemar or Mantel-Haenszel) i have to performed
to analyise my data. Can anybody help me whether McNemar test
can be applied to 1:2 case-controlpairs data set or it is only
applied to 1:1 case-control pairs dataset.
 
Is it any wrong with me if i applied Mantel-Haenszel test in
mydata set. Some of the statistical books writing Mantel-Haenszel
test can be applied to stratified data but not for matched data.
 
-----------------------------------------------------
 
-mcc- only handles 1:1 matched data. You can use -clogit-
(conditional logistic regression) for any matching ratio,
even varying ratios. -clogit- also lets you adjust for 
potential confounders.
 
Example:
   webuse lowbirth.dta
   clogit low smoke , group(pairid) or
 
Hope this helps
Svend
 
________________________________________________________ 
 
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6 
DK-8000 Aarhus C,  Denmark 
Phone, work:  +45 8942 6090 
Phone, home:  +45 8693 7796 
Fax:          +45 8613 1580 
E-mail:       sj@soci.au.dk 
_________________________________________________________ 

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