R help - May 2018 - Poisson regression with GEE using stepwise selection of independent variables.

Is there any way to perform stepwise Poisson regression with GEE in R?
(I know, and agree that stepwise procedures are not best statistical practice. I
have developed a model with 10 independent variables, my client want me to
include 50 other independent variables. I, of course, don't what to do this.
I am hoping that I can demonstrate that adding additional variables does not
make a material change to the results, but I don't want to have to perform
this arduous task by hand).
Thank you,
John



John David Sorkin M.D., Ph.D.
Professor of Medicine
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology and Geriatric
Medicine
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
(Phone) 410-605-7119
(Fax) 410-605-7913 (Please call phone number above prior to faxing)


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