Factors associated with mortality of elderly people due to COVID-19: Protocol for systematic review and meta-analysis

Danyllo do Nascimento Silva Junior, Ádala Nayana de Sousa Mata, Gidyenne Christine Bandeira Silva de Medeiros, Marilane Vilela Marques, Thais Teixeira dos Santos, Maria Eduarda de Sousa Monteiro, Gabriela Góis Costa, Eleonora d´Orsi, Eva Vegue Parra and Grasiela Piuvezam

PLOS ONE, 2024, vol. 19, issue 4, 1-9

Abstract: Introduction: The COVID-19 pandemic has become a significant health crisis, marked by high mortality rates on a global scale, with mortality from the disease being notably concentrated among the elderly due to various factors. Objective: This study aims to investigate the biological and non-biological factors associated with COVID-19 mortality rates among the elderly worldwide. Methods: The following databases will be consulted: PubMed, Scopus, EMBASE, Web of Science and ScienceDirect. Longitudinal observational studies (cohort and case-control—risk factors) will be included. The risk of bias, defined as low, moderate, high, will be assessed using the National Heart, Lung and Blood Institute (NHLBI) Quality Assessment Tool for observational cohort and cross-sectional studies. Two independent authors will conduct the searches, and any possible disagreements will be resolved by a third author. Heterogeneity between study results will be assessed using a standard X2 test with a significance level of 0.05, and an I2 value will be calculated to further assess heterogeneity. The random effects model for meta-analyses will be adopted to distribute the weight between the studies and standardize their contributions. The meta-analyses will be conducted using RevMan software. Discussion: Despite the numerous publications on COVID-19 mortality among the elderly, there is still a gap in knowledge, as there is no systematic review and meta-analysis that summarizes the main biological and non-biological associated factors globally. Conclusion: The results of this study will consolidate the latest evidence and address gaps in the overall understanding of biological or non-biological associated factors. This knowledge will facilitate the development of appropriate health strategies for this demographic group and pave the way for further research. Trial registration: PROSPERO (CRD42023400873).

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0289576

DOI: 10.1371/journal.pone.0289576

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