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. 2021 Aug 10;226(2):236.e1–236.e14. doi: 10.1016/j.ajog.2021.08.007

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Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Gestational age at birth in COVID-19 vaccinated and unvaccinated women

Groups were matched on expected date of delivery, index of multiple deprivation quintile, self-reported ethnicity, antenatal medication, pregestational diabetes mellitus, maternal age, and antihypertensive medication. Mixed-effects Cox regression showed that vaccination was not significantly associated with gestational age at delivery before 40 weeks’ gestation (hazard ratio, 0.93; 95% confidence interval, 0.71–1.23; P=.624).

Blakeway et al. COVID-19 vaccination during pregnancy. Am J Obstet Gynecol 2022.