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st: comparing differences of rate differences
This is not really a Stata question but I have been
unsuccessful finding a satisfactory answer. Any
assistance will be greatly appreciated.
I have computed hospital admission rates for two
different years (1996, 2002). To compare these rates I
can simply use Stata’s –prtest- (or –tabulate- ) to
test whether these rates differ.
Now, if I compute these rates separately for Whites
and Blacks, how can I test if the change in rates from
1996 to 2002 is different for whites than for blacks?
Ricardo Ovaldia, MS
Oklahoma City, OK
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