Results 21 to 30 of about 90,354 (334)

Explaining the variation in the attained power of a stepped-wedge trial with unequal cluster sizes. [PDF]

BMC Med Res Methodol, 2020
Background In a cross-sectional stepped-wedge trial with unequal cluster sizes, attained power in the trial depends on the realized allocation of the clusters.
Ouyang Y, Karim ME, Gustafson P, Field TS, Wong H.   +4 more
europepmc   +2 more sources

How important is randomisation in a stepped wedge trial? [PDF]

Trials, 2015
In cluster randomised trials, randomisation increases internal study validity. If enough clusters are randomised, an unadjusted analysis should be unbiased.
Copas, Andrew J, Fielding, Katherine L, Hargreaves, James R, Prost, Audrey   +3 more
core   +5 more sources

Delaying and withholding interventions: ethics and the stepped wedge trial [PDF]

Journal of Medical Ethics, 2019
Ethics has been identified as a central reason for choosing the stepped wedge trial over other kinds of trial designs. The potential advantage of the stepped wedge design is that it provides all arms of the trial with the active intervention over the ...
A. Binik
semanticscholar   +3 more sources

Safety and effectiveness of a non-electric infant warmer for hypothermia in Rwanda: A cluster-randomized stepped-wedge trial. [PDF]

EClinicalMedicine, 2021
Uwamariya J, Mazimpaka C, May L, Nshimyiryo A, Feldman HA, Sayinzoga F, Umutesi S, Gadgil A, Rapp VH, Nahimana E, Hansen A.   +10 more
europepmc   +2 more sources

swCRTdesign: An RPackage for Stepped Wedge Trial Design and Analysis. [PDF]

Comput Methods Programs Biomed, 2020
Voldal EC, Hakhu NR, Xia F, Heagerty PJ, Hughes JP.   +4 more
europepmc   +2 more sources

Effectiveness and Cost of an Enhanced Mailed Fecal Test Outreach Colorectal Cancer Screening Program: Findings from the PROMPT Stepped-Wedge Trial.

Cancer Epidemiology, Biomarkers and Prevention, 2023
BACKGROUND Mailed fecal immunochemical test (FIT) outreach can improve colorectal cancer screening rates, yet little is known about how to optimize these programs for effectiveness and cost.
G. Coronado, Denis B Nyongesa, A. Escaron, Amanda F. Petrik, Jamie H. Thompson, Dave Smith, Melinda M. Davis, J. Schneider, Jennifer S Rivelli, Tanya Laguna, M. Leo   +10 more
semanticscholar   +1 more source

Fostering positive attitudes towards interacting with young people with disability among health students: a stepped-wedge trial

Disability and Rehabilitation, 2023
Purpose To investigate if a 12-week community-based exercise program (FitSkills) fostered positive attitudes towards disability among university student mentors. Methods A stepped-wedge cluster randomised trial was completed with 4 clusters.
N. Shields, Yeshna Bhowon, L. Prendergast, Stacey L. Cleary, N. Taylor   +4 more
semanticscholar   +1 more source

Key concepts in clinical epidemiology: Stepped wedge trials [PDF]

Journal of Clinical Epidemiology, 2021
A stepped wedge trial evaluates an intervention that is implemented over a number of time periods according to a staggered timetable. Stepped wedge trials are usually cluster randomized, the intervention being delivered at some geographical, service or other cluster level.
openaire   +3 more sources

Improving HPV Vaccination Rates: A Stepped-Wedge Randomized Trial [PDF]

Pediatrics, 2020
OBJECTIVES: To evaluate the effectiveness of a stepped-wedge randomized trial of Development of Systems and Education for Human Papillomavirus Vaccination (DOSE HPV), a multilevel intervention. METHODS:
Rebecca B, Perkins, Aaron, Legler, Emily, Jansen, Judith, Bernstein, Natalie, Pierre-Joseph, Terresa J, Eun, Dea L, Biancarelli, Thomas J, Schuch, Karin, Leschly, Anny T H R, Fenton, William G, Adams, Jack A, Clark, Mari-Lynn, Drainoni, Amresh, Hanchate   +13 more
openaire   +2 more sources

Admissible multiarm stepped‐wedge cluster randomized trial designs [PDF]

Statistics in Medicine, 2018
Numerous publications have now addressed the principles of designing, analyzing, and reporting the results of stepped‐wedge cluster randomized trials. In contrast, there is little research available pertaining to the design and analysis of multiarm stepped‐wedge cluster randomized trials, utilized to evaluate the effectiveness of multiple experimental ...
Grayling, Michael J, Mander, Adrian P, Wason, James MS   +2 more
openaire   +5 more sources