Vaccine effectiveness against severe COVID-19 outcomes within the French overseas territories: A cohort study of 2-doses vaccinated individuals matched to unvaccinated ones followed up until September 2021 and based on the National Health Data System

Laura Semenzato; Jérémie Botton; Bérangère Baricault; Jacqueline Deloumeaux; Clarisse Joachim; Emmanuelle Sylvestre; Rosemary Dray-Spira; Alain Weill; Mahmoud Zureik

doi:10.1371/journal.pone.0274309

Loading metrics

Open Access

Peer-reviewed

Research Article

Vaccine effectiveness against severe COVID-19 outcomes within the French overseas territories: A cohort study of 2-doses vaccinated individuals matched to unvaccinated ones followed up until September 2021 and based on the National Health Data System

Laura Semenzato ,

Roles Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft

* E-mail: laura.semenzato@assurance-maladie.fr

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France

https://orcid.org/0000-0002-8305-3487

⨯
Jérémie Botton,

Roles Conceptualization, Methodology, Writing – review & editing

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France
⨯
Bérangère Baricault,

Roles Conceptualization

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France
⨯
Jacqueline Deloumeaux,

Roles Writing – review & editing

Affiliation Clinical Research and Innovation Department, Guadeloupe University Hospital Center, Les Abymes, Guadeloupe
⨯
Clarisse Joachim,

Roles Writing – review & editing

Affiliation Martinique General Cancer Registry, Cancerology Hematology Urology Center from Martinique University Hospital Center, Fort-de-France, Martinique
⨯
Emmanuelle Sylvestre,

Roles Writing – review & editing

Affiliation Clinical Data center—Martinique University Hospital Center, Fort-de-France, Martinique
⨯
Rosemary Dray-Spira,

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France

https://orcid.org/0000-0001-7646-3667

⨯
Alain Weill,

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France
⨯
Mahmoud Zureik

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation EPI-PHARE Scientific Interest Group in Epidemiology of Health Products (French National Agency for the Safety of Medicines and Health Products—ANSM, French National Health Insurance—CNAM), Saint-Denis, France
⨯

Vaccine effectiveness against severe COVID-19 outcomes within the French overseas territories: A cohort study of 2-doses vaccinated individuals matched to unvaccinated ones followed up until September 2021 and based on the National Health Data System

Laura Semenzato,
Jérémie Botton,
Bérangère Baricault,
Jacqueline Deloumeaux,
Clarisse Joachim,
Emmanuelle Sylvestre,
Rosemary Dray-Spira,
Alain Weill,
Mahmoud Zureik

Published: September 9, 2022
https://doi.org/10.1371/journal.pone.0274309

Reader Comments

Post a new comment on this article

Were some subjects reclassified?

Posted by mfrancis on 25 Oct 2022 at 16:59 GMT

In the table 5, it can be seen that nearly one-third of the vaccinated subjects had their 2nd injection during the timeframe of the Study (July 15 to September 30). What happened to the vaccinated subjects that caught covid and had events during the 14 days after the 2nd injection? Were they reclassified as unvaccinated or was the duo censored?

No competing interests declared.

Subject Areas
?

For more information about PLOS Subject Areas, click here.
We want your feedback. Do these Subject Areas make sense for this article? Click the target next to the incorrect Subject Area and let us know. Thanks for your help!

Vaccination and immunization
Is the Subject Area "Vaccination and immunization" applicable to this article?

Thanks for your feedback.
Vaccines
Is the Subject Area "Vaccines" applicable to this article?

Thanks for your feedback.
COVID 19
Is the Subject Area "COVID 19" applicable to this article?

Thanks for your feedback.
Medical risk factors
Is the Subject Area "Medical risk factors" applicable to this article?

Thanks for your feedback.
France
Is the Subject Area "France" applicable to this article?

Thanks for your feedback.
Booster doses
Is the Subject Area "Booster doses" applicable to this article?

Thanks for your feedback.
Guadeloupe
Is the Subject Area "Guadeloupe" applicable to this article?

Thanks for your feedback.
Viral vaccines
Is the Subject Area "Viral vaccines" applicable to this article?

Thanks for your feedback.

Vaccine effectiveness against severe COVID-19 outcomes within the French overseas territories: A cohort study of 2-doses vaccinated individuals matched to unvaccinated ones followed up until September 2021 and based on the National Health Data System

Vaccine effectiveness against severe COVID-19 outcomes within the French overseas territories: A cohort study of 2-doses vaccinated individuals matched to unvaccinated ones followed up until September 2021 and based on the National Health Data System

Reader Comments

Post Your Discussion Comment

Why should this posting be reviewed?

Thank You!

Were some subjects reclassified?

Posted by mfrancis on 25 Oct 2022 at 16:59 GMT