st: trend

["Daniela Ferrante (Lab. Statistica)" <ferrante@scimed1.med.unipmn.it>]

Hello. I'd like to know how performing a test of trend after applying a 
Poisson regression. 
If I have for classes for the indipendent variables , I'd like to know if 
there is a trend of the risk ratio.

Thank you

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/