Odds Ratio Trend in Multivariate Logistic Regression

I am looking for how to conduct a trend test for the odds ratios for a categorical variable in a multivariate logistic model performed in SAS. So it would ideally generate a p-value for whether the odds ratios compared to the refence group increase as the category goes up.

I found this comparable post, though it seems to have been unresolved:

http://www.listserv.uga.edu/cgi-bin/...=sas-l&P=50893