Provisional 2020 US data show 15.9% increase in age-adjusted death rate, COVID-19 third leading causeHow much did death rates rise in 2020? COVID-19 became the third leading cause

Provisional observational mortality data for the United States population in 2020 were analyzed. The specific intervention or exposure was not reported, and no comparator was defined. The study setting was the entire United States, with sample size and follow-up duration not reported.

The main findings indicate the age-adjusted death rate increased by 15.9% compared to the previous year. COVID-19 was identified as the third leading cause of death. Disparities were observed: overall death rates were highest among Black and American Indian or Alaska Native people, while COVID-19 death rates were highest among Hispanic people. Exact absolute numbers, p-values, and confidence intervals for these outcomes were not reported.

Safety and tolerability data were not reported. The authors note these are provisional data, and the analysis is observational, showing associations rather than establishing causation. Key limitations to avoid overstating include causality, generalizability beyond the 2020 US population, and the mechanisms behind the observed disparities. Practice relevance was not explicitly reported, but these data provide a descriptive snapshot of population-level mortality trends during the pandemic year.