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RE: st: How to - scatter plot with regression line after adjustment for covariates


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: How to - scatter plot with regression line after adjustment for covariates
Date   Tue, 11 Mar 2008 11:59:08 -0000

The official Stata commands -avplot- and -avplots- offer similar, if not identical, graphics. 

Nick
n.j.cox@durham.ac.uk 

Hoffman, George

You might want to look at predxcon.ado, by joanne garrett. It predicts y by x (regression) and allows covariates for adjustment. 
You could also manually predict y and se after your adjusted regression, and draw the regression line with ci's on top of the scatterplot. Consult the online regression faqs.

roland andersson

I am helping a colleague that wants to describe the relation between
vascular wall stiffnes and wall tension for 30 patients. In a simple
linear regression analysis the association is almost significant, but
the scatterplot does not show the association so clear. The points are
very scattered around the regression line.

After adjustment for age and sex the relation becomes strongly
significant. I would like to make a scatterplot with added regression
lines of the association after adjustment for age and sex. I guess I
can use confidence limits to illustrate the strong association, but is
it also possible to show the points after adjustment?


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