Journal
ACTA MEDICA PORTUGUESA
Volume 33, Issue 6, Pages 376-383Publisher
ORDEM MEDICOS
DOI: 10.20344/amp.13928
Keywords
Coronavirus; Coronavirus Infections; Disease Outbreaks; Mortality; Pandemics; Portugal
Categories
Funding
- Infraestrutura Nacional de Computacao Distribuida (INCD) [National Infrastructure for Distributed Computation] - Fundacao para a Ciencia e Tecnologia (FCT)
- FEDER [022153]
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Introduction: Portugal is experiencing the effects of the COVID-19 pandemic since March 2020. All-causes mortality in Portugal increased during March and April 2020 compared to previous years, but this increase is not explained by COVID-19 reported deaths. The aim of this study was to analyze and consider other criteria for estimating excessive all-causes mortality during the early COVID-19 pandemic period. Material and Methods: Public data was used to estimate excess mortality by age and region between March 1 and April 22, proposing baselines adjusted for the lockdown period. Results: Despite the inherent uncertainty, it is safe to assume an observed excess mortality of 2400 to 4000 deaths. Excess mortality was associated with older age groups (over age 65). Discussion: The data suggests a ternary explanation for early excess mortality: COVID-19, non-identified COVID-19 and decrease in access to healthcare. The estimates have implications in terms of communication of non-pharmaceutical actions, for research, and to healthcare professionals. Conclusion: The excess mortality occurred between March 1 and April 22 was 3.5- to 5-fold higher than what can be explained by the official COVID-19 deaths.
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