Am J Epidemiol. 2023 Jun 2;192(6):849-850. doi: 10.1093/aje/kwad039.
Coronavirus disease 2019 (COVID-19) vaccines have been reported to have a short-term effect on the menstrual cycle, delaying the onset of the next menses. However, the analytical methods that have been used to study this are subject to a statistical phenomenon called "length-biased sampling" that calls the results into question. Those data are important and should be reanalyzed in an unbiased way.
新型冠状病毒病 2019(COVID-19)疫苗已被报道对月经周期有短期影响,导致下一次月经延迟。然而,用于研究此现象的分析方法受到一种称为“长度偏差采样”的统计现象的影响,该现象使结果受到质疑。这些数据很重要,应该以无偏的方式重新分析。