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st: another aflogit issue

From   Marc Campo <>
To   Marc Campo <>,
Subject   st: another aflogit issue
Date   Tue, 31 Oct 2006 12:22:37 -0800 (PST)

I keep running LR and then typing in aflogit for
particular variables specifying a reference level. 
For some variables, no problem.  For others, it says
variable not found or abbreviation is incorrect.  I am
typing in the right names.

the variable xfer runs.  the variables job_strain and
manual_total do not.  Anyone know why?


--- Marc Campo <> wrote:

> I am looking at a series of ordinal indep variables
> individually while adjusting for background factors
> with logistic regression.  I am entering these
> varaibles as continuous as opposed to dummy coding. 
> I want to use AFLOGIT for attributable fractions.  I
> am not sure how this works with a continuous indep
> variable however.  My vars are coded from 1-4 or
> 1-5. 
> 1 in each case is the lowest category.  The AF
> instructions state to make the reference cat your
> non
> exposure category, so I have used 1.  Is the result
> the AF for all other categories vs. 1 in that case? 
> That's not what I want.  But with so few categories,
> I
> can't just take the middle value either. If it isn't
> just 1 vs. all others, then my results should be
> fine.
> Any help is appreciated.

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