METABIAS: Stata module to test for small-study effects in meta-analysis

Roger Harbord, Ross J Harris (), Jonathan AC Sterne () and Thomas Steichen

Statistical Software Components from Boston College Department of Economics

Abstract: metabias performs several statistical tests for funnel-plot asymmetry in meta-analysis and optionally plots associated graphs. As there are several possible sources of funnel-plot asymmetry, these tests assess evidence for small-study effects in general rather than publication bias specifically. This is version 2.1 of the program. In addition to the tests available in previous versions of the program, namely the rank correlation test proposed by Begg and Mazumdar and the regression test proposed by Egger et al., this version also includes the modified regression test proposed by Harbord et al. and the modification of Macaskill's test proposed by Peters et al. The previous version of the program (sbe19.5) is included as -metabias6-.

Language: Stata
Requires: Stata version 9.2 and the metan package (6.0 for metabias6)
Keywords: meta-analysis; publication bias; small-study effects; funnel plot (search for similar items in EconPapers)
Date: 2000-02-16, Revised 2010-12-07
Note: This module may be installed from within Stata by typing "ssc install metabias". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/m/metabias.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/metabias.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/metabias6.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/metabias6.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/metabias.dlg dialog file (text/plain)

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