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零时指定对观察性研究中估计的COVID-19抗病毒有效性的影响

Kristina L Bajema1,2, Lei Yan3,4, Kristin Berry5

  • 1Veterans Affairs Portland Health Care System, Portland, OR, United States.

American journal of epidemiology
|October 13, 2025
PubMed
概括

在研究中定义开始时间 (零时间) 会影响结果. 在对Nirmatrelvir-ritonavir治疗COVID-19的观察性研究中,用于设定零时间的不同方法产生了不同的有效性估计.

关键词:
观察性药物治疗研究.时间零,时间零.

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