Elsevier

The Lancet

Volume 367, Issue 9514, 18–24 March 2006, Pages 881-883
The Lancet

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Systematic reviews: when is an update an update?

https://doi.org/10.1016/S0140-6736(06)68358-XGet rights and content

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    The same challenges were brought up 10 years later in 2016 by Garner et al. [2], who defined an update as a new edition of a published SR with changes such as new data, methods, or analyses. The definition of Garner et al. [2] is thus different from the definition of Moher and Tsertsvadze, which requires new evidence that has not been included in the previously completed review [3]. The current version (version 6.3 from 2022) of the Cochrane Handbook for Systematic Reviews of Interventions [5] cites the definition of Garner et al. [2] and highlights that introduction of new methods can change both results and the estimates of certainty in a review.

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