Generated on 2021-03-08
Monitoring excess mortality provides understanding of the impact of COVID-19 during the course of the pandemic and beyond. Excess mortality in this report is defined as the number of deaths throughout the pandemic which are above the number expected based on mortality rates in earlier years.
In this report the expected number of deaths is modelled using five years of data from preceding years to estimate the number of deaths we would expect on each week through the course of the pandemic. Excess deaths are estimated by week and in total since 21 March 2020, based on the date each death was registered rather than when it occurred. Excess deaths are presented by age, sex, region, ethnic group, level of deprivation, cause of death and place of death.
The trend in total excess deaths by week, in England, since week ending 27 March 2020 is shown in Figure 1. Numbers above each of the columns show the total number of excess deaths and how these compare with the expected number based on modelled estimates for 2015 to 2019. For example, in week ending 24 April 2020 there were 10,004 excess deaths and this was nearly two times (1.92 times higher) the expected number of deaths in this week. When fewer deaths than expected occur in a week, the column is coloured grey.
Excess deaths where COVID-19 was mentioned on the death certificate are shown in orange. If the number of deaths is not shown in the orange part of the column, that means the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected in these weeks.
The number of excess deaths without COVID-19 mentioned on the certificate (shown in the white part of the column) may be due to an increase in deaths from other causes during the period of the pandemic but may also reflect under-reporting of deaths involving COVID-19.
The trend in the total cumulative number of excess deaths in England since 21 March 2020 is shown in Figure 2.
The trend in excess deaths for males by age group is shown in Figures 3 to 9, which allows the extent of the excess each week to be compared over time and between age groups.
Figure 10A for males can be used to compare the cumulative total of excess deaths since 21 March 2020 between age groups.
Figure 10B compares the cumulative total of excess deaths among males with the number which would have been expected based on the modelled estimates for earlier years. Where the ratio of observed to expected is less than 1, this is shown in grey. The proportion of the excess where COVID-19 was mentioned on the death certificate is shown in yellow.
Table 1 - Males | ||||||
---|---|---|---|---|---|---|
Age group (years) | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
0-14 | 1,568 | 1,773 | 0.88 | −205 | 5 | - |
15-44 | 9,031 | 8,003 | 1.13 | 1,028 | 811 | 78.9% |
45-64 | 41,775 | 31,767 | 1.32 | 10,008 | 7,900 | 78.9% |
65-74 | 54,768 | 43,635 | 1.26 | 11,133 | 12,058 | >100%* |
75-84 | 90,102 | 73,158 | 1.23 | 16,944 | 22,890 | >100%* |
85+ | 92,815 | 75,870 | 1.22 | 16,945 | 23,888 | >100%* |
Total | 290,059 | 234,206 | 1.24 | 55,853 | 67,552 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
Why ratios are important
Ratios can be useful for comparing between groups when the expected number is very different between groups.
For example, if group A had 5 excess deaths and group B had 10, it could appear that the impact was twice as high in group B. However, if the expected number of deaths was 1 in group A and 5 in group B, and the registered numbers of deaths were 6 and 15 respectively, then the ratios would show that group A experienced 6 times the number of deaths compared to expected, while group B experienced 3 times the number expected. Therefore, the actual relative impact is higher in group A.
The ratios presented in this report are relative to historical trends within each group, and not in relation to another group. For example, in the ethnicity section the ratio for the Asian group is the ratio between deaths in this group registered in 2020 and the estimate of expected deaths in the Asian group based on the preceding 5 years. It is not the ratio between the Asian group and another ethnic group.
The trend in excess deaths for females by age group is shown in Figures 11 to 17, which allows the extent of the excess each week to be compared over time and between age groups.
Figure 18A for females can be used to compare the cumulative total of excess deaths since 21 March 2020 between age groups.
Figure 18B shows the ratio of the observed to the expected deaths by age group among females since 21 March 2020. This chart can be used to compare the relative excess mortality between age groups.
Table 2 - Females | ||||||
---|---|---|---|---|---|---|
Age group (years) | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
0-14 | 1,226 | 1,387 | 0.88 | −161 | 6 | - |
15-44 | 5,182 | 4,397 | 1.18 | 785 | 543 | 69.2% |
45-64 | 26,581 | 21,493 | 1.24 | 5,088 | 4,427 | 87.0% |
65-74 | 37,678 | 31,267 | 1.21 | 6,411 | 7,073 | >100%* |
75-84 | 74,879 | 63,300 | 1.18 | 11,579 | 16,384 | >100%* |
85+ | 134,219 | 111,920 | 1.20 | 22,299 | 28,452 | >100%* |
Total | 279,765 | 233,765 | 1.20 | 46,000 | 56,885 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
The trend in excess deaths for males is shown in Figures 19 to 23, which allows the extent of the excess each week to be compared over time and between ethnic groups.
Figure 24A for males can be used to compare the cumulative total of excess deaths since 21 March 2020 between ethnic groups.
Figure 24B shows the ratio of the observed to the expected deaths by ethnic group among males since 21 March 2020. This chart can be used to compare relative excess mortality between ethnic groups.
Table 3 - Males | ||||||
---|---|---|---|---|---|---|
Ethnic group | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
Asian | 12,428 | 6,815 | 1.82 | 5,613 | 5,109 | 91.0% |
Black | 6,298 | 3,511 | 1.79 | 2,787 | 2,251 | 80.8% |
Mixed | 1,362 | 901 | 1.51 | 461 | 365 | 79.2% |
Other | 4,066 | 2,723 | 1.49 | 1,343 | 1,335 | 99.3% |
White | 259,862 | 215,039 | 1.21 | 44,823 | 57,022 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
The trend in excess deaths for females is shown in Figures 25 to 29, which allows the extent of the excess each week to be compared over time and between ethnic groups.
Figure 30A for females can be used to compare the cumulative total of excess deaths since 21 March 2020 between ethnic groups.
Figure 30B shows the ratio of the observed to the expected deaths by ethnic group among females since 21 March 2020. This chart can be used to compare relative excess mortality between ethnic groups.
Table 4 - Females | ||||||
---|---|---|---|---|---|---|
Ethnic group | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
Asian | 8,798 | 5,506 | 1.60 | 3,292 | 2,980 | 90.5% |
Black | 4,951 | 3,043 | 1.63 | 1,907 | 1,437 | 75.3% |
Mixed | 1,233 | 736 | 1.67 | 497 | 284 | 57.1% |
Other | 3,314 | 1,946 | 1.70 | 1,369 | 863 | 63.0% |
White | 255,662 | 217,329 | 1.18 | 38,332 | 50,018 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
Ethnicity coding
Ethnicity is not collected at death registration, so these estimates were made by linking death records to hospital records to find the ethnicity of the deceased. This approach has some limitations. Ethnicity is supposed to be self-reported by the patient in hospital records, but this may not always be the case. Patients may also report different ethnicities in different episodes of care. For this analysis the most recent reported ethnic group was used. Population estimates have been used to calculate mortality rates to estimate the expected numbers of deaths, and these were based on the 2011 Census. This may lead to a mismatch between ethnicity reported in hospital records and self-reported ethnicity in the census. It appears, for example, that more people are assigned to the ‘Other’ group in hospital records than in the 2011 Census.
The trend in excess deaths among deprivation quintiles is shown in Figures 31 to 35, which allows the extent of the excess each week to be compared over time and between deprivation quintiles.
Figure 36A can be used to compare the cumulative total of excess deaths since 21 March 2020 between deprivation quintiles.
Figure 36B shows the ratio of the observed to the expected deaths by deprivation quintile since 21 March 2020. This chart can be used to compare relative excess mortality between deprivation quintiles.
Table 5 | ||||||
---|---|---|---|---|---|---|
Deprivation quintile | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
Quintile 1 - Most Deprived | 120,462 | 96,140 | 1.25 | 24,322 | 28,403 | >100%* |
Quintile 2 | 114,821 | 93,605 | 1.23 | 21,216 | 26,507 | >100%* |
Quintile 3 | 116,403 | 96,513 | 1.21 | 19,890 | 24,524 | >100%* |
Quintile 4 | 113,002 | 94,749 | 1.19 | 18,253 | 23,529 | >100%* |
Quintile 5 - Least Deprived | 105,136 | 87,296 | 1.20 | 17,840 | 21,474 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
The trend in excess deaths by region is shown in Figures 37 to 45, which allows the extent of the excess each week to be compared over time and for selected regions.
Figure 46A can be used to compare the cumulative total of excess deaths since 21 March 2020 between regions.
Figure 46B shows the ratio of the observed to the expected deaths by region since 21 March 2020. This chart can be used to compare relative excess mortality between regions.
Table 6 | ||||||
---|---|---|---|---|---|---|
Region | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
North East | 31,455 | 26,115 | 1.20 | 5,340 | 6,648 | >100%* |
North West | 82,532 | 66,827 | 1.24 | 15,705 | 19,527 | >100%* |
Yorkshire and the Humber | 58,414 | 48,807 | 1.20 | 9,607 | 12,184 | >100%* |
East Midlands | 51,591 | 42,711 | 1.21 | 8,880 | 10,971 | >100%* |
West Midlands | 64,838 | 51,502 | 1.26 | 13,336 | 14,717 | >100%* |
East of England | 65,533 | 54,401 | 1.20 | 11,132 | 14,359 | >100%* |
London | 63,027 | 46,700 | 1.35 | 16,327 | 18,341 | >100%* |
South East | 92,975 | 77,180 | 1.20 | 15,795 | 19,850 | >100%* |
South West | 59,459 | 53,729 | 1.11 | 5,730 | 7,840 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
The trend in excess deaths for selected underlying causes of death (UCOD) is shown in Figures 47 to 58 which allow the extent of the excess to be compared over time for each cause. For each cause, the number of excess deaths without COVID-19 mentioned on the certificate (shown in the white part of the column) may be due to an increase in deaths from this cause during the period of the pandemic, but may also reflect under-reporting of deaths involving COVID-19.
Figure 59A shows the total cumulative excess deaths by UCOD since 21 March 2020. The chart can be used to compare the number of excess deaths for each UCOD.
This chart can be used to compare the cumulative total of excess deaths since 21 March 2020 between underlying causes.
Figure 59B shows the ratio of the observed to the expected deaths by UCOD since 21 March 2020. This chart can be used to compare relative excess mortality between underlying causes of death.
Table 7 | ||||||
---|---|---|---|---|---|---|
Underlying cause of death | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
Ischaemic Heart Diseases | 48,540 | 46,082 | 1.05 | 2,458 | 1,377 | 56.0% |
Cerebrovascular Diseases | 25,770 | 24,260 | 1.06 | 1,510 | 1,006 | 66.6% |
Other Circulatory Diseases | 41,628 | 39,788 | 1.05 | 1,840 | 1,255 | 68.2% |
Cancer | 127,748 | 130,594 | 0.98 | −2,846 | 3,177 | - |
Acute Respiratory Infections | 17,784 | 24,271 | 0.73 | −6,487 | 12 | - |
Chronic Lower Respiratory Diseases | 21,900 | 28,346 | 0.77 | −6,446 | 335 | - |
Other Respiratory Diseases | 7,193 | 9,776 | 0.74 | −2,583 | 158 | - |
Dementia and Alzheimer's | 60,063 | 61,577 | 0.98 | −1,514 | 2,339 | - |
Diseases of the Urinary System | 7,392 | 6,802 | 1.09 | 590 | 378 | 64.0% |
Cirrhosis and Other Liver Diseases | 8,486 | 7,664 | 1.11 | 822 | 378 | 46.0% |
Parkinson's Disease | 6,415 | 7,045 | 0.91 | −630 | 264 | - |
All Other Causes (Excl. COVID-19) | 85,181 | 83,195 | 1.02 | 1,986 | 2,035 | >100%* |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
Figures 60 to 62 show weekly excess deaths where a specific cause was mentioned anywhere on the death certificate. These causes will have contributed to the death but not necessarily been the underlying cause.
Figures 63 to 67 show the weekly total excess registered deaths by place of death since week ending 27 March 2020. These charts can be used to understand the trend in excess deaths by place of death. This analysis should be interpreted as excess deaths within each place of death compared to what would have been expected based on data over the past five years.
Figure 68A shows the total cumulative excess deaths in each place of death since 21 March 2020. The chart can be used to compare the numbers of excess deaths in each place of death. This chart can be used to compare the cumulative total of excess deaths since 21 March 2020 between places of death.
Figure 68B shows the ratio of the observed to the expected deaths in each place of death since 21 March 2020. This chart can be used to compare relative excess mortality between places of death.
Table 8 | ||||||
---|---|---|---|---|---|---|
Place of death | Registered deaths | Expected deaths | Ratio registered / expected | Excess deaths | COVID-19 deaths | COVID-19 deaths as % excess |
Care Home (Nursing or Residential) | 131,783 | 104,483 | 1.26 | 27,300 | 29,287 | >100%* |
Home | 156,251 | 115,607 | 1.35 | 40,644 | 6,757 | 16.6% |
Hospice | 22,988 | 28,375 | 0.81 | −5,387 | 1,890 | - |
Hospital (Acute or Community, not Psychiatric) | 244,819 | 207,868 | 1.18 | 36,951 | 85,660 | >100%* |
Other Places | 13,983 | 11,940 | 1.17 | 2,043 | 843 | 41.3% |
*
the total excess was less than the number of deaths with a mention of COVID-19, indicating fewer deaths from other causes than expected
|
The Office for National Statistics also publishes a weekly report on excess deaths in England & Wales. The numbers reported by ONS are broadly in line with the overall excess death figures in this report but there are some differences as the ‘expected’ numbers in this report are not just the simple five-year average for 2015 to 2019, as used by ONS. As explained in the Methods, they are instead modelled estimates which adjust for factors such as the ageing of the population and the underlying trend in mortality rates from year to year.
PHE produces other estimates of excess mortality using the daily General Register Office model and the EuroMOMO model. These are reviewed in this blog.
Several changes to the models were introduced in the report for the week ending 18 December 2020 and subsequent reports:
The methodology document has been updated to reflect these changes.
The code used to create this report is stored here.