Ontology highlight
ABSTRACT: Objectives
Most countries initially deployed COVID-19 vaccines preferentially in elderly populations. We aimed to evaluate whether population-level vaccine effectiveness is heralded by an increase in the relative proportion of deaths among non-elderly populations that were less covered by vaccination programs.Eligible data
We collected data from 40 countries on age-stratified COVID-19 deaths during the vaccination period (1/14/2021-5/31/2021) and two control periods (entire pre-vaccination period and excluding the first wave).Main outcome measures
We meta-analyzed the proportion of deaths in different age groups in vaccination versus control periods in (1) countries with low vaccination rates; (2) countries with age-independent vaccination policies; and (3) countrie
SUBMITTER: Pastorino R
PROVIDER: S-EPMC8570444 | biostudies-literature | 2022 Mar
REPOSITORIES: biostudies-literature