Safety of COVID-19 vaccines among pregnant individuals in Quebec, Canada: a population-based retrospective cohort study from the Canadian Immunization Research Network.

Safety of COVID-19 vaccines among pregnant individuals in Quebec, Canada: a population-based retrospective cohort study from the Canadian Immunization Research Network.

Publication date: Dec 23, 2025

To estimate the association between maternal COVID-19 vaccination during pregnancy and adverse neonatal and maternal outcomes. Population-based retrospective cohort study using a hospitalisation database linked with other health administrative databases. Province of Quebec, Canada, from 1 May 2021 to 30 June 2023. All singleton pregnancies resulting in a live birth or stillbirth at ≥20 weeks of gestation, excluding those with a conception date

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Concepts Keywords
Canada Adult
Hospitalisation Chorioamnionitis
June COVID-19
Pregnancy COVID-19
COVID-19 Vaccines
COVID-19 Vaccines
Female
Humans
Immunization Programs
Infant, Newborn
INFECTIOUS DISEASES
Pregnancy
Pregnancy
Pregnancy Complications, Infectious
Pregnancy Outcome
Premature Birth
Quebec
Retrospective Studies
SARS-CoV-2
Stillbirth
Vaccination
Young Adult

Semantics

Type Source Name
disease MESH COVID-19
disease MESH stillbirth
disease MESH Chorioamnionitis
disease MESH INFECTIOUS DISEASES
disease MESH Complications Infectious Pregnancy
disease MESH Premature Birth

Original Article

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