Time to update and quantitative changes in the results of cochrane pregnancy and childbirth reviews.

PloS One
Wanlop JaideeMalinee Laopaiboon

Abstract

The recommended interval between updates for systematic reviews included in The Cochrane Library is 2 years. However, it is unclear whether this interval is always appropriate. Whereas excessive updating wastes time and resources, insufficient updating allows out-of-date or incomplete evidence to guide clinical decision-making. We set out to determine, for Cochrane pregnancy and childbirth reviews, the frequency of updates, factors associated with updating, and whether updating frequency was appropriate. Cochrane pregnancy and childbirth reviews published in Issue 3, 2007 of the Cochrane Database of Systematic Reviews were retrieved, and data were collected from their original and updated versions. Quantitative changes were determined for one of the primary outcomes (mortality, or the outcome of greatest clinical significance). Potential factors associated with time to update were assessed using the Cox proportional hazard model. Among the 101 reviews in our final sample, the median time before the first update was 3.3 years (95% CI 2.7-3.8). Only 32.7% had been updated within the recommended interval of 2 years. In 75.3% (76/101), a median of 3 new trials with a median of 576 additional participants were included in the update...Continue Reading

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Citations

May 28, 2017·Journal of Clinical Epidemiology·Laura Martínez GarcíaPablo Alonso-Coello
Jun 27, 2017·Journal of Biomedical Informatics·Georgios KontonatsiosSophia Ananiadou
Nov 28, 2012·PloS One·Porjai PattanittumChetta Ngamjarus
Jul 10, 2014·Systematic Reviews·Guy TsafnatEnrico Coiera
Mar 2, 2019·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Rafael Sarkis-OnofreMaximiliano Sérgio Cenci
Nov 19, 2018·Systematic Reviews·Rabia BashirAdam G Dunn
May 31, 2019·Systematic Reviews·Farhad Shokraneh, Clive E Adams

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