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The cluster randomized crossover trial: The effects of attrition in the AB/BA design and how to account for it in sample size calculations
BACKGROUND/AIMS: This article studies the effect of attrition in the cluster randomized crossover trial. The focus is on the two-treatment two-period AB/BA design where attrition occurs during the washout period. Attrition may occur at either the subject level or the cluster level. In the latter cas...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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SAGE Publications
2020
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7472836/ https://www.ncbi.nlm.nih.gov/pubmed/32191129 http://dx.doi.org/10.1177/1740774520913042 |