However, additional deaths could be indirectly related because people avoided emergency care during the pandemic, new research shows.
Deaths linked to COVID-19 varied by state and phase of the pandemic, as reported in a study from researchers at Virginia Commonwealth University and Yale University that was published online October 12 in JAMA.
Another study published online simultaneously in JAMA took more of an international perspective. Investigators from the University of Pennsylvania and Harvard University found that in America there were more excess deaths and there was higher all-cause mortality during the pandemic than in 18 other countries.
Although the ongoing number of deaths attributable to COVID-19 continues to garner attention, there can be a lag of weeks or months in how long it takes some public health agencies to update their figures.
“For the public at large, the take-home message is twofold: that the number of deaths caused by the pandemic exceeds publicly reported COVID-19 death counts by 20% and that states that reopened or lifted restrictions early suffered a protracted surge in excess deaths that extended into the summer,” lead author of the US-focused study, Steven H. Woolf, MD, MPH, told Medscape Medical News.
The take-away for physicians is in the bigger picture – it is likely that the COVID-19 pandemic is responsible for deaths from other conditions as well. “Surges in COVID-19 were accompanied by an increase in deaths attributed to other causes, such as heart disease and Alzheimer’s disease and dementia,” said Woolf, director emeritus and senior adviser at the Center on Society and Health and professor in the Department of Family Medicine and Population Health at the Virginia Commonwealth University School of Medicine in Richmond, Virginia.
The investigators identified 225,530 excess US deaths in the 5 months from March to July. They report that 67% were directly attributable to COVID-19.
Deaths linked to COVID-19 included those in which the disease was listed as an underlying or contributing cause. US total death rates are “remarkably consistent” year after year, and the investigators calculated a 20% overall jump in mortality.
The study included data from the National Center for Health Statistics and the US Census Bureau for 48 states and the District of Columbia. Connecticut and North Carolina were excluded because of missing data.
Woolf and colleagues also found statistically higher rates of deaths from two other causes, heart disease and Alzheimer’s disease/dementia.
New York, New Jersey, Massachusetts, Louisiana, Arizona, Mississippi, Maryland, Delaware, Rhode Island, and Michigan had the highest per capita excess death rates. Three states experienced the shortest epidemics during the study period: New York, New Jersey, and Massachusetts.
Some lessons could be learned by looking at how individual states managed large numbers of people with COVID-19. “Although we suspected that states that reopened early might have put themselves at risk of a pandemic surge, the consistency with which that occurred and the devastating numbers of deaths they suffered was a surprise,” Woolf said.
“The goal of our study is not to look in the rearview mirror and lament what happened months ago but to learn the lesson going forward: Our country will be unable to take control of this pandemic without more robust efforts to control community spread,” Woolf said. “Our study found that states that did this well, such as New York and New Jersey, experienced large surges but bent the curve and were back to baseline in less than 10 weeks.
“If we could do this as a country, countless lives could be saved.”