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From |
Maarten buis <maartenbuis@yahoo.co.uk> |

To |
stata list <statalist@hsphsun2.harvard.edu> |

Subject |
RE: st: logit: t-test for odds-ratio vs coefficient |

Date |
Mon, 10 Aug 2009 11:58:00 +0000 (GMT) |

--- Kyle Caswell wrote: > I have been using -ologit- with survey data (i.e., using svy) and am > reporting only odds-ratios, not coefficients, for a write-up. When > using the option "or" (for odds ratio) Stata produces a table with > transformed standard errors and confidence intervals for the reported > odds-ratios. However, the t-statistics and corresponding p-values are > the same as in the output when the option "or" is not specified. In > other words, I understand that the t-stats and P>|z| refer to the null > hypothesis of whether a particular estimated *coefficient* is equal to > zero. > > Is there an option which produces t-statistics, and P>|z|, corresponding > to the null hypothesis that the given odds-ratio displayed in the table > is equal to one? The coefficient is the log odds ratio, so a test that the log odds ratio is equal to zero is equivalent to a test that the odds ratio is equal to one. So, the reported t-values and p-values, are the values you want. Hope this helps, Maarten ----------------------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://home.fsw.vu.nl/m.buis/ ----------------------------------------- * * 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/

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