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From |
"Tiffany Davenport" <tiffany.davenport@yale.edu> |

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

Subject |
st: 'Meta' and 'Metareg' Coefficients & CIs Differ |

Date |
Mon, 23 Jul 2007 17:49:58 -0400 |

I am using the 'meta' and 'metareg' commands for meta-analysis in Stata. As I understand it (and as previously posted) the pooled random effects estimate obtained by using the 'meta' command should be the same as the constant obtained in meta-regression analysis ('metareg') of a model with no covariates. I am finding that the values of these estimates as well as their confidence intervals differ slightly. I have entered the following syntax: "meta beta SE" - for the meta command and "metareg beta, wsse(SE)" for the meta-regression command 1. Shouldn't the pooled random effects estimate from 'meta' be the same as the coefficient for the constant from 'metareg,' and shouldn't the confidence intervals be the same? If not, I would appreciate any insight into why the two commands would generate different estimates with different standard errors. Are they weighted differently? Are adjustments to the syntax of either command necessary to ensure the intercepts and confidence intervals match? 2. Is it possible to display more decimal places in the 'meta' output? Thanks very much for any help. * * 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/

**Follow-Ups**:**Re: st: 'Meta' and 'Metareg' Coefficients & CIs Differ***From:*"Tom Trikalinos" <ttrikalin@gmail.com>

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