Eldridge, Sandra, Kerry, Sally and Torgerson, David J. (orcid.org/0000-0002-1667-4275) (2009) Bias in identifying and recruiting participants in cluster randomised trials: what can be done? British Medical Journal. b4006. -. ISSN 0959-8146
(Summary Points) . Poor design of cluster trials risks bias in selection of participants. . Ideally participants should be identified before the cluster is randomised. . When this is not possible recruitment should be by someone masked to the cluster allocation. . Statistical solutions to selection bias are less satisfactory than design solutions. . Cluster trials need to report cluster sizes to enable the readers to ascertain any differences in recruitment between treatment groups.
|Copyright, Publisher and Additional Information:||© 2009 BMJ Publishing Group. This is an author produced version of a paper published in the BMJ. Uploaded in accordance with the publisher's self archiving policy.|
|Institution:||The University of York|
|Academic Units:||The University of York > Health Sciences (York)|
|Depositing User:||Repository Administrator York|
|Date Deposited:||10 Nov 2009 15:32|
|Last Modified:||22 Mar 2016 00:02|