Single time point comparisons in longitudinal randomized controlled trials: power and bias in the presence of missing data

BACKGROUND: The primary analysis in a longitudinal randomized controlled trial is sometimes a comparison of arms at a single time point. While a two-sample t-test is often used, missing data are common in longitudinal studies and decreases power by reducing sample size. Mixed models for repeated mea...

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Detalles Bibliográficos
Autores principales: Ashbeck, Erin L., Bell, Melanie L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2016
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4828848/
https://www.ncbi.nlm.nih.gov/pubmed/27068578
http://dx.doi.org/10.1186/s12874-016-0144-0

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4828848/
https://www.ncbi.nlm.nih.gov/pubmed/27068578
http://dx.doi.org/10.1186/s12874-016-0144-0

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