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Text
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<a href="http://doi.org/10.1186/1745-6215-15-33" target="_blank" rel="noreferrer">http://doi.org/10.1186/1745-6215-15-33</a>
<a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902027/" target="_blank" rel="noreferrer">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902027/</a>
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Title
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Methodological survey of designed uneven randomization trials (DU-RANDOM): a protocol
Publisher
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Trials
Date
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2014
Creator
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Wu Darong; Akl EA; Guyatt G; Devereaux PJ; Brignardello-Petersen R; Prediger B; Patel K; Patel N; Lu Taoying; Zhang Y; Falavigna M; Santesso N; Mustafa RA; Zhou Qi; Briel M; Schunemann HJ
Description
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Background Although even randomization (that is, approximately 1:1 randomization ratio in study arms) provides the greatest statistical power, designed uneven randomization (DUR), (for example, 1:2 or 1:3) is used to increase participation rates. Until now, no convincing data exists addressing the impact of DUR on participation rates in trials. The objective of this study is to evaluate the epidemiology and to explore factors associated with DUR. Methods We will search for reports of RCTs published within two years in 25 general medical journals with the highest impact factor according to the Journal Citation Report (JCR)-2010. Teams of two reviewers will determine eligibility and extract relevant information from eligible RCTs in duplicate and using standardized forms. We will report the prevalence of DUR trials, the reported reasons for using DUR, and perform a linear regression analysis to estimate the association between the randomization ratio and the associated factors, including participation rate, type of informed consent, clinical area, and so on. Discussion A clearer understanding of RCTs with DUR and its association with factors in trials, for example, participation rate, can optimize trial design and may have important implications for both researchers and users of the medical literature.
2014-01
Identifier
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<a href="http://doi.org/10.1186/1745-6215-15-33" target="_blank" rel="noreferrer">10.1186/1745-6215-15-33</a>
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Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
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Journal Article
2014
Akl EA
Backlog
Briel M
Brignardello-Petersen R
Devereaux PJ
Falavigna M
Guyatt G
Journal Article
Lu Taoying
Mustafa RA
Patel K
Patel N
Prediger B
Santesso N
Schunemann HJ
Trials
Wu Darong
Zhang Y
Zhou Qi