Beard, E;
Lewis, JJ;
Copas, A;
Davey, C;
Osrin, D;
Baio, G;
Thompson, JA;
... Prost, A; + view all
(2015)
Stepped wedge randomised controlled trials: systematic review of studies published between 2010 and 2014.
Trials
, 16
, Article 353. 10.1186/s13063-015-0839-2.
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Abstract
In a stepped wedge, cluster randomised trial, clusters receive the intervention at different time points, and the order in which they received it is randomised. Previous systematic reviews of stepped wedge trials have documented a steady rise in their use between 1987 and 2010, which was attributed to the design's perceived logistical and analytical advantages. However, the interventions included in these systematic reviews were often poorly reported and did not adequately describe the analysis and/or methodology used. Since 2010, a number of additional stepped wedge trials have been published. This article aims to update previous systematic reviews, and consider what interventions were tested and the rationale given for using a stepped wedge design.
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