Estimates of excess deaths presented in this webpage were calculated using Farrington surveillance algorithms (1). Weekly counts of deaths were also added by age for all causes.Įstimates of excess deaths can be calculated in a variety of ways, and will vary depending on the methodology and assumptions about how many deaths are expected to occur. For more detail, see the Technical Notes. injuries) or unknown causes are excluded. Cause of death counts are based on the underlying cause of death, and presented for Respiratory diseases, Circulatory diseases, Malignant neoplasms, and Alzheimer disease and dementia. The causes shown here were chosen based on analyses of the most prevalent comorbid conditions reported on death certificates where COVID-19 was listed as a cause of death (see ). Similar to all causes of death, these weekly counts can be compared to values from the same weeks in prior years to determine whether recent increases have occurred for specific causes of death.
These deaths could represent misclassified COVID-19 deaths, or potentially could be indirectly related to the COVID-19 pandemic (e.g., deaths from other causes occurring in the context of health care shortages or overburdened health care systems).Īs of June 3, 2020, additional information on weekly counts of deaths by cause of death has been added to this release. Comparing these two sets of estimates - excess deaths with and without COVID-19 - can provide insight about how many excess deaths are identified as due to COVID-19, and how many excess deaths are reported as due to other causes of death. Additionally, deaths from all causes excluding COVID-19 were also estimated. As some deaths due to COVID-19 may be assigned to other causes of deaths (for example, if COVID-19 was not diagnosed or not mentioned on the death certificate), tracking all-cause mortality can provide information about whether an excess number of deaths is observed, even when COVID-19 mortality may be undercounted.
Weekly counts of deaths are compared with historical trends to determine whether the number of deaths is significantly higher than expected.Ĭounts of deaths from all causes of death, including COVID-19, are presented. This visualization provides weekly estimates of excess deaths by the jurisdiction in which the death occurred. Excess deaths are typically defined as the difference between the observed numbers of deaths in specific time periods and expected numbers of deaths in the same time periods. Estimates of excess deaths can provide information about the burden of mortality potentially related to the COVID-19 pandemic, including deaths that are directly or indirectly attributed to COVID-19.
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