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Researchers calculated the harrowing human toll of COVID-19 in years of life lost

Last year was the deadliest year in American history, with total deaths surpassing 3 million for the first time.

Researchers calculated the harrowing human toll of COVID-19 in years of life lost
Cemetery workers in protective suits sit on graves decorated with flowers during a funeral at Nossa Senhora Aparecida Cemetery. [Photo: Lucas Silva/Picture Alliance via Getty Images]
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More than 20.5 million years of life worldwide may have been lost to the coronavirus pandemic, says a new study published in Scientific Reports.

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Researchers from a university in Barcelona came to this grim conclusion by summing up the estimated years lost for more than 1.2 million deaths from COVID-19, across 81 different countries. Years lost was calculated as the difference between a victim’s age of death and the average life expectancy within their country.

As of January 6, 2021, that total was 20,507,518 years for those countries, study authors say (with the caveat that estimates may be over or under, due to the difficulty of accurately recording COVID-19-related deaths). It’s also just a snapshot of a global pandemic that has traveled to all seven continents.

Within the study’s subset, COVID-19 in heavily infected countries appeared to claim two to nine times more years per death than seasonal influenza. Of the study’s total years lost, 45% were from individuals aged 55 to 75 years; 30% were from individuals under 55 years; and 25% were from individuals over 75 years, suggesting that the death toll rose with age. Years lost was also nearly 1.5 times higher in men than in women.

The report comes on the tailwinds of more gloomy news from the Centers for Disease Control and Prevention, which said Thursday that the average life expectancy in the United States decreased by one year in the first half of 2020—the greatest decline the country has seen since World War II, conveying the sheer magnitude of the coronavirus crisis. That drop may worsen as they factor in the second half of 2020, health officials said.

2020 was reportedly the deadliest year in American history, with total deaths surpassing 3 million for the first time.