After thinking about this a little more, I am curious about your comment which I initially missed regarding the odds ratio only being reasonable when you report it in standard deviation units.  I am wondering about the distribution of that particular variable.  Are the values really large or really small and how big exactly is the standard deviation? Take a look at the summary statistics for that variable after the imputation (maybe a Proc MEANS with a BY statement) and make sure they look correct.  Again I would check the convergence of your Proc MI code (you can post the LOG if you have any questions).     You could also try standardizing that variable, especially if it has extreme values or extreme variation and see if you get more meaningful results. ... View more