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From |
Steven Samuels <sjsamuels@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Meta-analysis, Breslow-Day test for non-binary variable |

Date |
Wed, 19 Oct 2011 15:23:47 -0400 |

The BD Test is, in your case, a 2 d.f. of equal OR in the two cohorts; as such it is a test of the interaction between y and z in a logistic regression model. *********************************** logistic x y##z, coeflegend test 2.y#1.z 3.y#1.z ************************************ Steve On Oct 19, 2011, at 8:09 AM, Berthold Hoppe wrote: Dear all. Using -mhodds x y, by(z)- I have analyzed the relation between -x- (0 or 1) and -y- (0 or 1 or 2) in two cohorts (-z-) to get pooled OR and M-H for homogeneity. In a review process I am now asked to provide a P for homogeneity by Breslow-Day instead of Mantel-Haenszel testing. Does anyone know if and how this could be calculated by STATA? As -y- is not binary -cc x y, by(z) bd- will not work. I have tried to use -meta-, -metan- or -metacum- but a Breslow-Day test seem to be possible only if -y- is binary. Many thanks in advance, Berthold * * 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/ * * 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/

**Follow-Ups**:**Re: st: Meta-analysis, Breslow-Day test for non-binary variable***From:*Berthold Hoppe <berthold.hoppe@charite.de>

**References**:**st: Meta-analysis, Breslow-Day test for non-binary variable***From:*Berthold Hoppe <berthold.hoppe@charite.de>

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