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Many multicentre trials had few events per centre, requiring analysis via random-effects models or GEEs

OBJECTIVES: Adjustment for center in multicenter trials is recommended when there are between-center differences or when randomization has been stratified by center. However, common methods of analysis (such as fixed-effects, Mantel-Haenszel, or stratified Cox models) often require a large number of...

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Detalhes bibliográficos
Publicado no:J Clin Epidemiol
Main Authors: Kahan, Brennan C, Harhay, Michael O
Formato: Artigo
Idioma:Inglês
Publicado em: 2015
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC4845666/
https://ncbi.nlm.nih.gov/pubmed/25985892
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.jclinepi.2015.03.016
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