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From | Maarten buis <maartenbuis@yahoo.co.uk> |
To | statalist@hsphsun2.harvard.edu |
Subject | RE: st: getting realitve risk from proportional odds ratio |
Date | Wed, 8 Dec 2010 17:47:22 +0000 (GMT) |
--- On Wed, 8/12/10, Bontempo, Daniel E wrote: > I am intrigued by the mlogit suggestion. Would I lose the > ordered nature of my dv? The levels are not nominal, but > increasing. Could I use the constraint option to specify the > order? With -mlogit- you ignore the information you have about the ordering of the categories. I do not see a way of using constraints to reintroduce that information and still be able to transform the odds ratios(*) to risk ratios. Hope this helps, Maarten (*) StataCorp calls them relative risk ratios, RRR, but IMHO an odds is just another word for relative risk. The difference is that StataCorp reserves the word odds for situation with two mutually exclusive categories, while in my discipline this is not a requirement. This is an old discussion, see for example: <http://www.stata.com/statalist/archive/2007-02/msg00085.html> Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * 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/