Results 11 to 20 of about 333,099 (299)

Balance algorithm for cluster randomized trials [PDF]

BMC Medical Research Methodology, 2008
Within cluster randomized trials no algorithms exist to generate a full enumeration of a block randomization, balancing for covariates across treatment arms. Furthermore, often for practical reasons multiple blocks are required to fully randomize a study, which may not have been well balanced within blocks.We present a convenient and easy to use ...
Carter, Ben R, Hood, Kerenza
openaire   +11 more sources

Randomization-based confidence intervals for cluster randomized trials [PDF]

Biostatistics, 2020
SummaryIn a cluster randomized trial (CRT), groups of people are randomly assigned to different interventions. Existing parametric and semiparametric methods for CRTs rely on distributional assumptions or a large number of clusters to maintain nominal confidence interval (CI) coverage.
Dustin J, Rabideau, Rui, Wang
openaire   +5 more sources

Estimation of Conditional Power for Cluster-Randomized Trials with Interval-Censored Endpoints [PDF]

, 2020
Cluster-randomized trials (CRTs) of infectious disease preventions often yield correlated, interval-censored data: dependencies may exist between observations from the same cluster, and event occurrence may be assessed only at intermittent clinic visits.
Hayes R.J., Komárek A., Lan K.K.G., Proschan M.A., Turnbull B.W.   +4 more
core   +3 more sources

Improving end-of-life care in acute geriatric hospital wards using the Care Programme for the Last Days of Life : study protocol for a phase 3 cluster randomized controlled trial [PDF]

, 2015
Background: The Care Programme for the Last Days of Life has been developed to improve the quality of end-of-life care in acute geriatric hospital wards.
Cohen, Joachim, Costantini, Massimo, Deliens, Luc, Smets, Tinne, Van Den Noortgate, Nele, Verhofstede, Rebecca   +5 more
core   +2 more sources

Ethical issues in cluster randomized trials conducted in low- and middle-income countries: an analysis of two case studies

Trials, 2020
Background Cluster randomized trials are common in health research in low- and middle-income countries raising issues that challenge interpretation of standard ethical guidelines.
Augustine T. Choko, Gholamreza Roshandel, Donaldson F. Conserve, Elizabeth L. Corbett, Katherine Fielding, Karla Hemming, Reza Malekzadeh, Charles Weijer   +7 more
doaj   +1 more source

Collaborative care for depression in UK primary care: a randomized controlled trial [PDF]

, 2007
Reproduced with permission of the publisher. © 2008 Cambridge University Press.Background. Collaborative care is an effective intervention for depression which includes both organizational and patient-level intervention components.
A. Simpson, A. J. Lankshear, Cohen, D. Escott, D. Torgerson, D. A. Richards, J. Fletcher, K. Lovell, L. Gask, Lipsey, M. Barkham, M. Bland, Mann, Martell, none, none, none, P. Bower, Peveler, R. Richardson, S. Gilbody, S. Hennessy, Singleton, Spitzer, Ukoumunne, Ware, Wilkinson   +26 more
core   +1 more source

Introduction of clinical guidelines for the diagnosis and treatment of osteoarthrosis: results of a cluster randomized trial

Научно-практическая ревматология, 2012
Objective: to evaluate the impact of the active introduction of clinical guidelines for the diagnosis and treatment of osteoarthrosis (OA) by primary care physicians on the efficiency of performed therapy and patient adherence to treatment. Methods. This
Dmitri Mikhailovich Maksimov, O M Lesnyak   +1 more
doaj   +1 more source

Design of trials for interrupting the transmission of endemic pathogens [PDF]

, 2016
Many interventions against infectious diseases have geographically diffuse effects. This leads to contamination between arms in cluster-randomized trials (CRTs).
Hiscox, Alexandra, Homan, Tobias, Maire, Nicolas, Mukabana, Richard, Silkey, Mariabeth, Smith, Thomas A., Takken, Willem   +6 more
core   +3 more sources

The mixed model for repeated measures for cluster randomized trials: a simulation study investigating bias and type I error with missing continuous data

Trials, 2020
Background Cluster randomized trials (CRTs) are a design used to test interventions where individual randomization is not appropriate. The mixed model for repeated measures (MMRM) is a popular choice for individually randomized trials with longitudinal ...
Melanie L. Bell, Brooke A. Rabe
doaj   +1 more source

Ethical Challenges of Randomized Violence Intervention Trials: Examining the SHARE intervention in Rakai, Uganda. [PDF]

, 2016
ObjectiveWe identify complexities encountered, including unanticipated crossover between trial arms and inadequate 'standard of care' violence services, during a cluster randomized trial (CRT) of a community-level intimate partner violence (IPV) and HIV ...
Nalugoda, Fred, Namatovu, Fredinah, Paul, Amy, Ssekubugu, Robert, Wagman, Jennifer A   +4 more
core   +2 more sources