Changes in COVID-19-related mortality across key demographic and clinical subgroups: an observational cohort study using the OpenSAFELY platform on 18 million adults in England

ObjectivesTo quantify in absolute and relative terms how population-level COVID-19 death rates have changed in demographic and clinical subgroups. DesignRetrospective cohort study on behalf of NHS England. SettingLinked primary care and death registry data from the OpenSAFELY-TPP platform, covering the first three pandemic waves in England (wave 1: March 23 to May... Show more