Changes to the way we report on COVID-19 deaths

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We’re altering the best way we current COVID-19 dying statistics on the GOV.UK COVID-19 Dashboard. “Deaths with COVID-19 on the dying registration” will change “deaths inside 28 days of a optimistic check” as the first reported COVID-19 dying statistic. 

This weblog explains why we’re making modifications to how we current knowledge on COVID-19 deaths. 

How will we depend COVID-19 deaths?

Now we have counted deaths following COVID-19 an infection for the reason that begin of the pandemic. Monitoring how many individuals die following an infection with a just lately emerged virus tells us how extreme it’s. It might additionally assist us perceive the place the illness is spreading and who’s worst affected by it.  

We defined previously how COVID-19 deaths are recorded in the UK. There are two foremost experiences: 

  • Deaths inside 28 days of a reported COVID-19 an infection (deaths with COVID) 
  • Demise the place COVID-19 is talked about on the dying registration (deaths from COVID) 

We began counting deaths with COVID-19 for speedy pandemic monitoring when there was a have to publish figures each day to tell choices about our pandemic response. This info could be collected way more shortly than dying registrations, so it can be utilized as an early warning sign of modifications in tendencies to help public well being actions. Through the use of this measure, we had been in a position to lower the reporting lag related to dying registrations from 11 days to 2-3 days. The deaths with COVID-19 metric has been used because the main dying indicator on the Gov.uk dashboard till 26 January 2023. 

Demise registrations are collated by the Workplace of Nationwide Statistics (ONS) and symbolize individuals who die from COVID-19, as determined by the clinician registering the dying. This measure gives a much less speedy however extra correct measure of the burden of the illness over time and has been printed on the gov.uk dashboard since 2020.

What has modified?

Now we have been monitoring how intently these two measurements align to ensure that the quantity of people that die with COVID-19 is an in depth approximation of the quantity of people that die from COVID-19. All through 2020 and 2021, between 80% and 90% of deaths reported inside 28 days of a optimistic COVID-19 check additionally had COVID-19 talked about on the dying registration. 

Beginning in early 2022 nonetheless, there was a marked divergence within the two measures, and this proportion dropped under 50% concordance in the summertime of 2022 and has stayed under 50% this winter.  This variation corresponded with the emergence of the Omicron variant and growing ranges of immunity from vaccination and former an infection, leading to safety from extreme sickness.  

Extra detailed comparability of two COVID-19 mortality measures could be discovered here. 

With excessive ranges of immunity within the inhabitants and COVID-19 persevering with to flow into locally, it’s not unusual for individuals who die of different causes to have a COVID-19 an infection recorded at or across the time of dying. These deaths might have been reported within the 28-day measure, however not counted within the dying registrations as a result of their dying was not judged to be associated to their COVID-19 an infection.   

The divergence between the 2 measures has been noticed over a adequate time interval for us to be assured that it’s not a brief impact, for instance as a result of modifications in testing practices. Because of this, we suggest that deaths inside 28 days of a optimistic check ought to not be interpreted because the main indicator of deaths as a result of COVID-19 and that dying registrations ought to be used as a substitute. 

Proportion of deaths inside 28 days of a optimisticcheck the place COVID-19 was subsequently talked about on the dying registration: March 2020 to September 2022 

Graph showing Percentage of deaths within 28 days of a positive COVID-19 test where COVID-19 was subsequently mentioned on the death registration: March 2020 to September 2022

How we’re adjusting our statistics

Once you open the COVID-19 dashboard, you’ll now see that “dying registrations” has changed “deaths inside 28 days of a optimistic COVID-19 check”  because the headline measure of COVID-19 deaths.  

The variety of deaths inside 28 days of COVID-19 will proceed to be printed as a subsidiary measure on the GOV.UK Dashboard to help customers throughout this variation by permitting comparability of each measures. We may even proceed to publish this measure within the Nationwide COVID-19 and Flu surveillance report. All knowledge will stay obtainable for public use for transparency. 

What subsequent?

At UKHSA, we hold our statistics beneath continuous evaluate to make sure that they continue to be related and that we’re publishing the most effective measure obtainable.  

As we attain a brand new part of the pandemic, there may be much less want for a real-time deaths measure and as a substitute we are able to give attention to dying registrations as a very powerful indicator for deaths related to COVID-19.

We’re persevering with to develop the COVID-19 dashboard and the COVID-19 surveillance statistics to make sure they continue to be related, helpful and in keeping with greatest observe. We’ll hold you posted as we progress. 

We welcome your suggestions on these modifications, our COVID-19 statistics or our statistical merchandise extra usually. Please get in contact at coronavirus-tracker@ukhsa.gov.uk or UKHSA_HOPSTATS@ukhsa.gov.uk 

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