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I have individual adjusted odds ratios from different articles, and I want to combine them to calculate a pooled odds ratio, e.g., aOR 2.13(1.43-3.18) and aOR 1.47(0.54-3.98).

So, is there any formula or guidance on how to combine them? The adjusted odds ratios are from articles, and I don't have the entire data set related to these two articles.

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    $\begingroup$ Sorry, don't have time to give you a more complete answer right now, but you could start by taking a look at the documentation of the metan command. $\endgroup$
    – boscovich
    Commented Jun 24, 2012 at 22:38
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    $\begingroup$ Of possible interest: Odds ratio and confidence interval in meta-analysis. $\endgroup$
    – chl
    Commented Jul 15, 2012 at 19:30

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Systematic Reviews in Health Care: Meta-analysis In Context is an excellent resource if you're looking to do a meta-analysis (in healthcare or otherwise - if you're not in health, ignore their overt fondness for clinical trials).

They also include extensive documentation for conducting a meta-analysis in Stata beyond just a pooled estimate of effect. That is where I would head to first.

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