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Re: st: stset for grouped data
From
Joerg Luedicke <[email protected]>
To
[email protected]
Subject
Re: st: stset for grouped data
Date
Wed, 13 Apr 2011 14:18:29 -0400
On Wed, Apr 13, 2011 at 12:06 PM, Dherani, Mukesh
<[email protected]> wrote:
> Dear Stata experts,
> I have grouped data and want to estimate incidence rate each year. How can I set 'stset' when I don't have individual level data. Do I need to expand data with certain assumptions?
>
> region year agegp cases population
> 1 1994 0-4 2 5000
> 1 1994 5-9 5 2548
> 1 1994 10-14 6 2547
> 1 1994 15-19 15 7521
> 1 1994 20-24 75 7896
>
What do you mean with "grouped"? Is this some aggregate measure from
individual persons? I guess if you do not have data from those
individual persons, you do not have it. I do not know how this
information would emerge by any form of expanding? You probably need
to check if your groups are a reasonable unit of analysis and then do
the analysis for those groups.
J.
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