• Katherine Milette, Michelle Roseman, and Brett D Thombs.
• Department of Psychiatry, McGill University, Montreal, Quebec, Canada.
• J Psychosom Res. 2011 Mar 1; 70 (3): 205-17.

ObjectiveThe most reliable evidence for evaluating healthcare interventions comes from well-designed and conducted randomized controlled trials (RCTs). The extent to which published RCTs reflect the efficacy of interventions, however, depends on the completeness and accuracy of published results. The Consolidated Standards of Reporting Trials statement, initially developed in 1996, provides guidelines intended to improve the transparency of published RCT reports. A policy of the International Committee of Medical Journal Editors, initiated in 2005, requires clinical trials published in member journals to be registered in publicly accessible registries prior to patient enrollment. The objective of this study was to assess the clarity of outcome reporting, proportion of registered trials, and adequacy of outcome registration in RCTs published in top behavioral health journals.MethodsEligible studies were primary or secondary reports of RCTs published in Annals of Behavioral Medicine, Health Psychology, Journal of Psychosomatic Research, and Psychosomatic Medicine from January 2008 to September 2009. Data were extracted for each study on adequacy of outcome reporting and registration.ResultsOf 63 articles reviewed, only 25 (39.7%) had adequately declared primary or secondary outcomes, whereas 38 (60.3%) had multiple primary outcomes or did not define outcomes. Only 13 studies (20.6%) were registered. Only 1 study registered sufficiently precise outcome information to compare with published outcomes, and registered and published outcomes were discrepant in that study.ConclusionGreater attention to outcome reporting and trial registration by researchers, peer reviewers, and journal editors will increase the likelihood that effective behavioral health interventions are readily identified and made available to patients.Copyright © 2011 Elsevier Inc. All rights reserved.

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