mRNA vaccine effectiveness against COVID-19-related hospitalisations and deaths in older adults: a cohort study based on data linkage of national health registries in Portugal, February to August 2021.

Authors :: Nunes B
Rodrigues AP
Kislaya I
Cruz C
Peralta-Santos A
Lima J
Pinto Leite P
Sequeira D
Matias Dias C
Machado A
Source :: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin [Euro Surveill] 2021 Sep; Vol. 26 (38).
Publication Year :: 2021
Abstract: Through deterministic data linkage of health registries, mRNA vaccine effectiveness (VE) against COVID-19-related hospitalisations and deaths was measured in 1,880,351 older adults. VE against hospitalisations was 94% (95% confidence interval (CI): 88-97) and 82% (95% CI: 72-89) for those 65-79 and ≥ 80 years old, with no evidence of waning 98 days after dose two. VE against mortality was 96% (95% CI: 92-98) and 81% (95% CI: 74-87) in these two age groups.

Subjects :: Aged
Aged, 80 and over
COVID-19 Vaccines
Cohort Studies
Hospitalization
Humans
Information Storage and Retrieval
Portugal epidemiology
RNA, Messenger
Registries
SARS-CoV-2
COVID-19
Vaccines

Language :: English
ISSN :: 1560-7917
Volume :: 26
Issue :: 38
Database :: MEDLINE
Journal :: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Publication Type :: Academic Journal
Accession number :: 34558406
Full Text :: https://doi.org/10.2807/1560-7917.ES.2021.26.38.2100833

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