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Updated: Feb 22, 2026

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影响功率的因素 在阶段形试验中,当治疗效果随时间变化时,影响功率的因素

Avi Kenny1,2, Emily C Voldal3, Fan Xia4

  • 1Department of Biostatistics & Bioinformatics, Duke University, Durham, NC, USA. avi.kenny@duke.edu.

Trials
|February 20, 2026
PubMed
概括

为了保持阶段子集群随机试验 (SW-CRTs) 的实力,研究人员在使用时间变化的治疗效果模型时必须增加样本大小. 调整研究设计可以提高随时间推移估计治疗效果的功率.

关键词:
集群随机试验是一个随机试验.动力 动力 动力 动力样本的大小 样本大小一个楼梯楼梯.一步的形形.时间变化的治疗效果.治疗效果的异质性治疗效果的异质性

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