# Calculating a pooled odds ratio from an adjusted odds ratio?

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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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. –  andrea Jun 24 '12 at 22:38
Of possible interest: Odds ratio and confidence interval in meta-analysis. –  chl Jul 15 '12 at 19:30
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## 1 Answer

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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