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st: 'combine': new SSC module

From   Philip Jones <>
Subject   st: 'combine': new SSC module
Date   Fri, 01 Apr 2011 16:05:35 -0400

Thanks to Kit Baum, a new module is available in the SSC archives.

'combine' is meant to be used by analysts performing meta-analysis whereupon it is
sometimes necessary to combine size (n) , mean, and SD from two groups (for example,
two intervention groups). The Cochrane Collaboration provides a formula for this
calculation in its handbook, but it is cumbersome to perform using a calculator, or by
hand. combine allows this calculation to be done quickly.

To install, type:

ssc install combine

Please send feedback by email or on Statalist.

Have a great weekend,

Philip M G Jones, MD PGDip (Clinical Trials) FRCPC

Assistant Professor of Anesthesiology
Department of Anesthesiology & Perioperative Medicine
University of Western Ontario
London Health Sciences Centre

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