Excess mortality in England post COVID-19 pandemic: implications for secondary prevention

Many countries, including the UK, have continued to experience an apparent excess of deaths long after the peaks associated with the COVID-19 pandemic in 2020 and 2021. Numbers of excess deaths estimated in this period are considerable. The UK Office for National Statistics (ONS) has calculated that there were 7.2% or 44,255 more deaths registered in the UK in 2022 based on comparison with the five-year average (excluding 2020). This persisted into 2023 with 8.6% or 28,024 more deaths registered in the first six months of the year than expected. The Continuous Mortality Investigation (CMI) found a similar excess (28,500 deaths) for the same period using different methods. Several methods can be used to estimate excess deaths, each with limitations which should be considered in interpretation, however the overall trends tend to be consistent across the various methods. The causes of these excess deaths are likely to be multiple and could include the direct effects of Covid-19 infection, acute pressures on NHS acute services resulting in poorer outcomes from episodes of acute illness, and disruption to chronic disease detection and management. Further analysis by cause and by age- and sex-group may help quantify the relative contributions of these causes.