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New guidance to improve sample size calculations for trials: eliciting the target difference
BACKGROUND: Sample size calculations are central to the design of health research trials. To ensure that the trial provides good evidence to answer the trial’s research question, the target effect size (difference in means or proportions, odds ratio, relative risk or hazard ratio between trial arms)...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BioMed Central
2018
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6219024/ https://www.ncbi.nlm.nih.gov/pubmed/30396364 http://dx.doi.org/10.1186/s13063-018-2894-y |