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From | Kassie Melius <lamogia3@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: Compare fit of variable in modified poisson model |
Date | Tue, 17 Dec 2013 14:34:00 +0000 |
Dear Statalisters, I am using Stata 13 and modified poisson regression with robust error variances (as per Zou G. A Modified Poisson Regression Approach to Prospective Studies with Binary Data. Am J Epidemiol 2004; 159(7):702-6.) How can I compare the p-value for the fit of each variable in my model ? For example if i run: glm depvar i.var1 i.var2 i.var3 i.var4, fam(poisson) link(log) nolog vce(robust) eform Is it appropriate to use testparm for each var1-var3 given that it is a Wald test, or should I be using lrtest (or something else)? Thank you Kassie * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/