st: CASE-CONTROL STUDY

["Ishay Barat" <i.b@dadlnet.dk>]

HELLO



I've got a data set containing about 2500 patients, of which 300 have my 
interest (Group A).

I would like to extract a sample of 900 patients (Group B) out of the data 
set that match Group A in age, sex and some other parameters. A Classical 
Case-Control study with 3 controllers for each case.



Is anybody have a clue how the syntax look like??






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 (( -:¦:- * Ishay *  -:¦:-
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