COVID-19 vaccine effectiveness against symptomatic SARS-CoV-2 infections, COVID-19 related hospitalizations and deaths, among individuals aged ≥65 years in Portugal: A cohort study based on data-linkage of national registries February-September 2021

Machado, Ausenda; Kislaya, Irina; Paula Rodrigues, Ana; João Sequeira, Duarte; Lima, João; Cruz, Camila; Pinto Leite, Pedro; Matias Dias, Carlos; Nunes, Baltazar

doi:10.1371/journal.pone.0274008

Public

COVID-19 vaccine effectiveness against symptomatic SARS-CoV-2 infections, COVID-19 related hospitalizations and deaths, among individuals aged ≥65 years in Portugal: A cohort study based on data-linkage of national registries February-September 2021

Published in PLoS ONE • Sep 13, 2022

Authors:

Ausenda Machado

Irina Kislaya

Ana Paula Rodrigues

Abstract

BACKGROUND: Using data from electronic health registries, this study intended to estimate the COVID-19 vaccine effectiveness (VE) in the population aged 65 years and more, against symptomatic infection, COVID-19-related hospitalizations, and deaths, overall and by time since complete vaccination for...

Subject

Medicine

Cohort

Hazard ratio

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