Journal
BMJ-BRITISH MEDICAL JOURNAL
Volume 373, Issue -, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bmj.n1137
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Funding
- Nuffield Department of Population Health (NDPH), University of Oxford
- UK Biobank
- NIHR Oxford Biomedical Research Centre
- BHF Centre of Research Excellence, Oxford
- Centre for Diet and Activity Research (CEDAR), a UK Clinical Research Collaboration (UKCRC) Public Health Research Centre of Excellence from British Heart Foundation
- Cancer Research UK
- Economic and Social Research Council
- Medical Research Council (MRC)
- National Institute for Health Research (NIHR)
- Wellcome Trust under UKCRC
- MRC [MC_UU_12015/6, MC_UU_00006/7]
- National Research University Higher School of Economics
- National Institutes of Health [R35GM131802, T32ES007142]
- NIHR Applied Research Collaboration East Midlands (ARC EM)
- NIHR Leicester Biomedical Research Centre (BRC)
- NIHR Leicester BRC
- UKRI (MRC)-DHSC (NIHR) COVID-19 Rapid Response Rolling Call [MR/V020536/1]
- HDR-UK [HDRUK2020.138]
- US Centers for Disease Control and Prevention Foundation
- Amgen
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Approximately one million excess deaths occurred in 2020 in these 29 high income countries, with the US, Italy, England and Wales, Spain, and Poland having the highest numbers. Many countries had excess deaths far surpassing reported deaths from Covid-19.
Objective To estimate the direct and indirect effects of the covid-19 pandemic on mortality in 2020 in 29 high income countries with reliable and complete age and sex disaggregated mortality data. Design Time series study of high income countries. Setting Austria, Belgium, Czech Republic, Denmark, England and Wales, Estonia, Finland, France, Germany, Greece, Hungary, Israel, Italy, Latvia, Lithuania, the Netherlands, New Zealand, Northern Ireland, Norway, Poland, Portugal, Scotland, Slovakia, Slovenia, South Korea, Spain, Sweden, Switzerland, and United States. Participants Mortality data from the Short-term Mortality Fluctuations data series of the Human Mortality Database for 2016-20, harmonised and disaggregated by age and sex. Interventions Covid-19 pandemic and associated policy measures. Main outcome measures Weekly excess deaths (observed deaths versus expected deaths predicted by model) in 2020, by sex and age (0-14, 15-64, 65-74, 75-84, and =85 years), estimated using an over-dispersed Poisson regression model that accounts for temporal trends and seasonal variability in mortality. Results An estimated 979?000 (95% confidence interval 954?000 to 1?001?000) excess deaths occurred in 2020 in the 29 high income countries analysed. All countries had excess deaths in 2020, except New Zealand, Norway, and Denmark. The five countries with the highest absolute number of excess deaths were the US (458?000, 454?000 to 461?000), Italy (89?100, 87?500 to 90?700), England and Wales (85?400, 83?900 to 86?800), Spain (84?100, 82?800 to 85?300), and Poland (60?100, 58?800 to 61?300). New Zealand had lower overall mortality than expected (-2500, -2900 to -2100). In many countries, the estimated number of excess deaths substantially exceeded the number of reported deaths from covid-19. The highest excess death rates (per 100?000) in men were in Lithuania (285, 259 to 311), Poland (191, 184 to 197), Spain (179, 174 to 184), Hungary (174, 161 to 188), and Italy (168, 163 to 173); the highest rates in women were in Lithuania (210, 185 to 234), Spain (180, 175 to 185), Hungary (169, 156 to 182), Slovenia (158, 132 to 184), and Belgium (151, 141 to 162). Little evidence was found of subsequent compensatory reductions following excess mortality. Conclusion Approximately one million excess deaths occurred in 2020 in these 29 high income countries. Age standardised excess death rates were higher in men than women in almost all countries. Excess deaths substantially exceeded reported deaths from covid-19 in many countries, indicating that determining the full impact of the pandemic on mortality requires assessment of excess deaths. Many countries had lower deaths than expected in children <15 years. Sex inequality in mortality widened further in most countries in 2020.
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