Kristien Verheyen wrote
In a case-control study with 1-1 matched pairs and binary exposure, how
do I produce a 2x2 table that shows the number of pairs where (case
exposed, control exposed); (case exposed, control unexposed); (case
unexposed, control exposed) and (case unexposed, control unexposed)?
Older versions of Stata had the 'match' command to do this, which
doesn't seem to exist anymore.
'mcc' does not do the trick.
------------------------------------------------------------
-mcc- does the trick, but the data must be in wide form, with the case
and its matched control in the same observation, and that may require a
-reshape-. Try this:
clear
webuse lowbirth.dta
keep pairid low smoke
reshape wide smoke , i(pairid) j(low)
tab2 smoke1 smoke0
mcc smoke1 smoke0
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: +45 8942 6090
Home: +45 8693 7796
Email: [email protected]
__________________________________________
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