Increased risk of type I errors in cluster randomised trials with small or medium numbers of clusters: a review, reanalysis, and simulation study

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

(2016) Monica Taljaard et al.   Clinical Trials

Generalized estimating equations in cluster randomized trials with a small number of clusters: Review of practice and simulation study

(2016) Shuang Huang et al.   Clinical Trials

Comparing denominator degrees of freedom approximations for the generalized linear mixed model in analyzing binary outcome in small sample cluster-randomized trials

(2015) Peng Li et al.   BMC Medical Research Methodology

Restrictive versus liberal blood transfusion for acute upper gastrointestinal bleeding (TRIGGER): a pragmatic, open-label, cluster randomised feasibility trial

(2015) Vipul Jairath et al.   LANCET

Recommendations for choosing an analysis method that controls Type I error for unbalanced cluster sample designs with Gaussian outcomes

(2015) Jacqueline L. Johnson et al.   STATISTICS IN MEDICINE

Are missing data adequately handled in cluster randomised trials? A systematic review and guidelines

(2014) Karla Díaz-Ordaz et al.   Clinical Trials

Small sample performance of bias-corrected sandwich estimators for cluster-randomized trials with binary outcomes

(2014) Peng Li et al.   STATISTICS IN MEDICINE

A systematic review of cluster randomised trials in residential facilities for older people suggests how to improve quality

(2013) Karla Diaz-Ordaz et al.   BMC Medical Research Methodology

Restrictive vs Liberal Blood Transfusion for Acute Upper Gastrointestinal Bleeding: Rationale and Protocol for a Cluster Randomized Feasibility Trial

(2013) Vipul Jairath et al.   TRANSFUSION MEDICINE REVIEWS

Update on the transfusion in gastrointestinal bleeding (TRIGGER) trial: statistical analysis plan for a cluster-randomised feasibility trial

(2013) Brennan C Kahan et al.   Trials

Why does clustering matter in orthodontic trials?

(2012) J. E. Harrison et al.   EUROPEAN JOURNAL OF ORTHODONTICS

Consort 2010 statement: extension to cluster randomised trials

(2012) M. K. Campbell et al.   BMJ-British Medical Journal