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9.8  Chapter information

Editors: Jonathan J Deeks, Julian PT Higgins and Douglas G Altman on behalf of the Cochrane Statistical Methods Group.

This chapter should be cited as: Deeks JJ, Higgins JPT, Altman DG (editors). Chapter 9: Analysing data and undertaking meta-analyses. In: Higgins JPT, Green S (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 (updated March 2011). The Cochrane Collaboration, 2011. Available from

Contributing authors: Doug Altman, Deborah Ashby, Jacqueline Birks, Michael Borenstein, Marion Campbell, Jon Deeks, Matthias Egger, Julian Higgins, Joseph Lau, Keith O'Rourke, Rob Scholten, Jonathan Sterne, Simon Thompson and Anne Whitehead.

Acknowledgements: We are grateful to the following for commenting helpfully on earlier drafts: Bodil Als-Nielsen, Doug Altman, Deborah Ashby, Jesse Berlin, Joseph Beyene, Jacqueline Birks, Michael Bracken, Marion Campbell, Chris Cates, Wendong Chen, Mike Clarke, Albert Cobos, Esther Coren, Francois Curtin, Roberto D'Amico, Keith Dear, Jon Deeks, Heather Dickinson, Diana Elbourne, Simon Gates, Paul Glasziou, Christian Gluud, Peter Herbison, Julian Higgins, Sally Hollis, David Jones, Steff Lewis, Philippa Middleton, Nathan Pace, Craig Ramsey, Keith O'Rourke, Rob Scholten, Guido Schwarzer, Jack Sinclair, Jonathan Sterne, Simon Thompson, Andy Vail, Clarine van Oel, Paula Williamson and Fred Wolf.