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Retricted access

Product review

First published 2017-8

Statistical analysis plan for the Head Position in Stroke Trial (HeadPoST): An international cluster cross-over randomized trial

Laurent Billot, Mark Woodward, Hisatomi Arima [...]

International Journal of Stroke

Retricted access

Research article

First published 2016-8

Substantial risks associated with few clusters in cluster randomized and stepped wedge designs

Monica Taljaard, Steven Teerenstra, Noah M Ivers [...]

Clinical Trials

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Research article

First published 2019-11

Inference for the treatment effect in multiple-period cluster randomised trials when random effect correlation structure is misspecified

Jessica Kasza, Andrew B Forbes

Statistical Methods in Medical Research

Open access

Research article

First published 2023-11

Optimal study designs for cluster randomised trials: An overview of methods and results

Samuel I Watson, Alan Girling, Karla Hemming

Statistical Methods in Medical Research

Open access

Research article

First published 2021-2

Extending the I-squared statistic to describe treatment effect heterogeneity in cluster,multi-centre randomized trials and individual patient data meta-analysis

Karla Hemming, James P Hughes, Joanne E McKenzie [...]

Statistical Methods in Medical Research

Open access

Research article

First published 2026-4

An online sample size calculator for designing partially clustered trials

Kylie M Lange, Thomas R Sullivan, Jessica Kasza [...]

Clinical Trials

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Research article

First published 2019-3

Impact of non-uniform correlation structure on sample size and power in multiple-period cluster randomised trials

J Kasza, K Hemming, R Hooper [...]

Statistical Methods in Medical Research

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Research article

First published 2014-8-28

Subgroups of Alzheimer's Disease: Stability of Empirical Clusters Over Time

Jessica Peter, Ahmed Abdulkadir, Christoph Kaller [...]

Journal of Alzheimer’s Disease

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Research article

First published 2021-7

Sample size determination for stepped wedge cluster randomized trials in pragmatic settings

Jijia Wang, Jing Cao, Song Zhang [...]

Statistical Methods in Medical Research

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Research article

First published 1995-10

Treatment of Cluster Headache: Clinical Trials,Design and Results

K Ekbom

Cephalalgia

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