To estimate the burden of excess mortality from 17 underlying causes of death in the U.S. from March to December 2020 and to explicitly compare trends in excess deaths from non-COVID causes versus COVID-19.
Key Findings:
Approximately 500,000 excess deaths occurred, with 70% attributed to COVID-19.
Increases in deaths from kidney disease (3%) and homicides (24%) were noted, while decreases were observed in cancer (–0.3%) and suicide (–7%).
Trends in excess deaths from cardiovascular disease, diabetes, and Alzheimer disease mirrored COVID-19 death trends.
Regional variations were significant, with increases in homicide and motor vehicle deaths in the Great Lakes region, and negative correlations observed for some causes.
Interpretation:
The increases in certain causes of death likely reflect healthcare disruptions and socio-economic impacts of the pandemic, while decreases in others may indicate shifts in health-seeking behavior or resource allocation, as evidenced by the findings.
Limitations:
The study relies on historical data which may not fully capture the complexities of the pandemic's impact, potentially skewing results.
Potential misclassification of deaths, particularly those related to COVID-19, could affect the accuracy of findings and interpretations.
Conclusion:
The analysis highlights the multifaceted impact of the COVID-19 pandemic on excess mortality from various causes, emphasizing the need for targeted public health responses to address these emerging trends.
