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From | Lara Cox <lara.j.cox@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: Missing DoF in logistic regression with imputed dataset |
Date | Tue, 9 Nov 2010 23:12:53 -0500 |
Dear colleagues, I am using Stata 11.1, and have an imputed dataset that was generated using the -ice- command downloaded from http://www.homepages.ucl.ac.uk/~ucakjpr/stata. I have two outcome variables, both binary, and a number of binary and continuous covariates. I wrote a .do file with a series of -mim: logistic outcome covariate- and -xi: mim: logistic outcome i.covariate- commands, which worked without issue for one outcome variable. However, using the other outcome variable, there is a problem with several of the covariates; the remainder of them provide the correct output. For those that are problematic, the output displays -minimum dof=.- and the table contains the OR and t values but is missing p(t), 95% CI, and FMI. I have checked to be sure that the outcome and covariates are coded correctly, tried running each command line separately, and used the dropdown menus. Please let me know if you have any other suggestions. Thank you so much for your assistance! Sincerely, Lara * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/