Changes in cancer-related mortality during the COVID-19 pandemic in the United States

Abstract

Few studies have examined cancer-related mortality overall, never mind select cancer types, during the COVID-19 pandemic. Data on cancer-related mortality (any mention in death certificates, multiple causes of death approach) was extracted from the US Centers for Disease Control and Prevention WONDER database. Changes in trends for age-standardized mortality rates through 1999-2021 were assessed by Joinpoint analysis. In total, 1 379 643 cancer-related deaths were registered in 2020-2021, with cancer selected as the underlying cause in 88%. After 2 decades of decline, age-standardized cancer-related mortality increased from 2019 to 2021 for all cancers (annual percentage change = 1.6%, 95% confidence interval = 0.6% to 2.6%), especially for prostate cancer (annual percentage change = 5.1%, 95% confidence interval = 2.2% to 8.2%) and hematologic cancers (annual percentage change = 4.8%, 95% confidence interval = 3.1% to 6.6%). Sharp peaks in cancer-related deaths for many cancer sites were observed during pandemic waves in both 2020 and 2021, mostly attributed to COVID-19 as the underlying cause. Multiple causes of death analyses are warranted to fully assess the impact of the pandemic on cancer-related mortality.