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Sample size calculations based on a difference in medians for positively skewed outcomes in health care studies
BACKGROUND: In healthcare research, outcomes with skewed probability distributions are common. Sample size calculations for such outcomes are typically based on estimates on a transformed scale (e.g. log) which may sometimes be difficult to obtain. In contrast, estimates of median and variance on th...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712177/ https://www.ncbi.nlm.nih.gov/pubmed/29197347 http://dx.doi.org/10.1186/s12874-017-0426-1 |