Tobias DK, Zhang C, van Dam RM et al. (2011) Physical activity before and during pregnancy and risk of gestational diabetes mellitus: a meta-analysis. Diabetes Care 34: 223-9 [Epub 2010 Sep 27]
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This article has been selected for inclusion in NHS Evidence because it meets the NHS Evidence definition of a reliable systematic review. This is a systematic review in the Cochrane Database of Systematic Reviews and those published by a journal which conforms to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standard. If not published by one of these journals, a systematic review is deemed reliable if the abstract reports the inclusion/exclusion criteria, confirms two or more sources have been searched, and incorporates a synthesis of included studies. A systematic review may also be deemed reliable if it has been appraised and selected by a group of experts for inclusion in an Evidence Update.
Systematic reviews listed as supporting references in Evidence Updates are also included.