Excess Deaths Associated with COVID-19

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# Excess Deaths Associated with COVID-19

Estimates of excess deaths can provide information about the burden of mortality potentially related to COVID-19, beyond the number of deaths that are directly attributed to COVID-19. Excess deaths are typically defined as the difference between observed numbers of deaths and expected numbers. This visualization provides weekly data on excess deaths by jurisdiction of occurrence. Counts of deaths in more recent weeks are compared with historical trends to determine whether the number of deaths is significantly higher than expected.

Estimates 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. Estimates of excess deaths presented in this webpage were calculated using Farrington surveillance algorithms (1). For each jurisdiction, a model is used to generate a set of expected counts, and the upper bound of the 95% Confidence Intervals (95% CI) of these expected counts is used as a threshold to estimate excess deaths. Observed counts are compared to these upper bound estimates to determine whether a significant increase in deaths has occurred. Provisional counts are weighted to account for potential underreporting in the most recent weeks. However, data for the most recent week(s) are still likely to be incomplete. Only about 60% of deaths are reported within 10 days of the date of death, and there is considerable variation by jurisdiction. More detail about the methods, weighting, data, and limitations can be found in the Technical Notes.

## Columns

Name | Socrata field name | Column name in `sgr mount` | Data type | Description |
---|---|---|---|---|

Outcome | outcome | outcome | Text | |

Type | type | type | Text | |

Exceeds Threshold | exceeds_threshold | exceeds_threshold | Checkbox | |

Total Excess Higher Estimate in 2020 | total_excess_higher_estimate_in_2020 | total_excess_higher_estimate_in_2020 | Number | |

Excess Lower Estimate | excess_lower_estimate | excess_lower_estimate | Number | |

Total Excess Lower Estimate in 2020 | total_excess_lower_estimate_in_2020 | total_excess_lower_estimate_in_2020 | Number | |

State | state | state | Text | |

Note | note | note | Text | |

Upper Bound Threshold | upper_bound_threshold | upper_bound_threshold | Number | |

Excess Higher Estimate | excess_higher_estimate | excess_higher_estimate | Number | |

Suppress | suppress | suppress | Text | |

Observed Number | observed_number | observed_number | Number | |

Year | year | year | Text | |

Percent Excess Lower Estimate | percent_excess_lower_estimate | percent_excess_lower_estimate | Number | |

Week Ending Date | week_ending_date | week_ending_date | Text | |

Average Expected Count | average_expected_count | average_expected_count | Number | |

Percent Excess Higher Estimate | percent_excess_higher_estimate | percent_excess_higher_estimate | Number |