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Cox regression using a calendar time scale was unbiased in simulations of COVID-19 vaccine effectiveness & safety
BACKGROUND: Observational studies on corona virus disease 2019 (COVID-19) vaccines compare event rates in vaccinated and unvaccinated person time using Poisson or Cox regression. In Cox regression, the chosen time scale needs to account for the time-varying incidence of severe acute respiratory synd...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
The Author(s). Published by Elsevier Inc.
2023
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9933854/ https://www.ncbi.nlm.nih.gov/pubmed/36806733 http://dx.doi.org/10.1016/j.jclinepi.2023.02.012 |