Date: Tue, 17 Jul 2007 13:58:52 -0400
Reply-To: wcw2 <wcw2@CDC.GOV>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: wcw2 <wcw2@CDC.GOV>
Subject: stat question: comparing proportions in 2 dependent samples
I'm looking for an appropriate statistical test for the difference in
proportions. I want to compare the proportion of a factor (for example,
males) in population A versus the proportion in population B.
However, population A is a partial subset of the larger population B (i.e.,
most, but not all, of population A is contained in population B).
I can't use the ChiSquare test as the 2 samples are not independent (such
as cases vs controls). I'm reluctant to use the McNemar's test for
dependent proportions as the 2 samples are not paired (such as before vs
after in the same population). Can anyone recommend a suitable statistical
test for the difference in these proportions? I'd be delighted with any SAS
code as well!