Covid-19ワクチンと生理の乱れとの関連はない。(Covid-19 vaccine not linked with period disruption)

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2023-03-23 エディンバラ大学

新型コロナウイルスに感染した女性は、生理の変化、例えば「過剰」または「軽い」生理、生理周期外出血などのリスクが高まることが、英国の調査によって示された。しかし、この研究は、生理に対する心配からワクチン接種を避ける可能性がある女性に安心感を与える結果を提供している。
82%の女性は生理に変化がなく、18%の女性のうち、喫煙者、以前にCOVID-19に感染していた人、または合成エストロゲンを含む避妊薬を使用していない人がリスクが高かった。
研究者らは、この結果が、COVID-19ワクチン接種による生理異常の相対的なリスクについて女性に助言する際の医療専門家の指針となることを期待している。

<関連情報>

COVID-19ワクチン接種後の月経周期の変化と疾患に関するレトロスペクティブケースコントロールスタディ A retrospective case-control study on menstrual cycle changes following COVID-19 vaccination and disease

Alexandra Alvergne,Gabriella Kountourides,M. Austin Argentieri,Lisa Agyen,Natalie Rogers,Dawn Knight,Gemma C Sharp,Jacqueline A Maybin,Zuzanna Olszewska
iScience  Published:March 15, 2023
DOI:https://doi.org/10.1016/j.isci.2023.106401

Covid-19ワクチンと生理の乱れとの関連はない。(Covid-19 vaccine not linked with period disruption)

Highlights

•Menstrual disturbances were reported by 1 in 5 people after COVID-19 vaccination

•Perceived vaccine-related menstrual changes decreased with combined contraceptives

•Vaccinated individuals were not at increased risk of abnormal uterine bleeding

•COVID-19 disease associated with heavier menstrual flow volume

Summary

There has been increasing public concern that COVID-19 vaccination causes menstrual disturbance regarding the relative effect of vaccination compared to SARS-CoV-2 infection. Our objectives were to test potential risk factors for reporting menstrual cycle changes following COVID-19 vaccination and to compare menstrual parameters following COVID-19 vaccination and COVID-19 disease. We performed a secondary analysis of a retrospective online survey conducted in the UK in March 2021. In pre-menopausal vaccinated participants (n=4,989), 18% reported menstrual cycle changes after their first COVID-19 vaccine injection. The prevalence of reporting any menstrual changes was higher for women who smoke, have a history of COVID-19 disease, or are not using oestradiol-containing contraceptives. In a second sample including both vaccinated and unvaccinated participants (n=12,579), COVID-19 vaccination alone was not associated with abnormal menstrual cycle parameters while a history of COVID-19 disease was associated with an increased risk of reporting heavier bleeding, ‘missed’ periods and inter-menstrual bleeding.

医療・健康
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