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A tutorial on sample size calculation for multiple-period cluster randomized parallel, cross-over and stepped-wedge trials using the Shiny CRT Calculator.
(2020-06-01)
It has long been recognized that sample size calculations for cluster randomized trials require consideration of the correlation between multiple observations within the same cluster. When measurements are taken at anything ...
Sample size and power calculations for open cohort longitudinal cluster randomized trials.
(John Wiley and Sons, 2020-03-04)
When calculating sample size or power for stepped wedge or other types of longitudinal cluster randomized trials, it is critical that the planned sampling structure be accurately specified. One common assumption is that ...
Cluster randomised trials with baseline data: sample size and optimal designs
(SAGE Publications, 2019-10-03)
Editors' Choice - July 2023.
(2023-07)
Tailored psychological intervention for anxiety or depression in COPD (TANDEM): a randomised controlled trial.
(2023-08-24)
This multi-centre, pragmatic, randomised controlled trial evaluated whether a tailored psychological intervention based on a cognitive behavioural approach for people with COPD and symptoms of anxiety and/or depression ...
Facedown Positioning Following Surgery for Large Full-Thickness Macular Hole: A Multicenter Randomized Clinical Trial.
(American Medical Association, 2020-05-07)
Importance: The value of facedown positioning following surgery for large full-thickness macular holes is unknown. Objective: To determine whether advice to position facedown postoperatively improves the outcome for large ...
Improving the healthcare response to domestic violence and abuse in UK primary care: interrupted time series evaluation of a system-level training and support programme.
(Springer Nature, 2020-03-05)
BACKGROUND: It is unknown whether interventions known to improve the healthcare response to domestic violence and abuse (DVA)-a global health concern-are effective outside of a trial. METHODS: An observational interrupted ...
Statistical analysis plan for the Early Youth Engagement in first episode psychosis (EYE-2) study: a pragmatic cluster randomised controlled trial of implementation, effectiveness and cost-effectiveness of a team-based motivational engagement intervention to improve engagement.
(2021-10-23)
BACKGROUND: Early Intervention in Psychosis (EIP) services improve health outcomes for young people with psychosis in the medium-long term, but 25% of young people disengage in the first 12 months with costs to their mental ...
