CCNY’s Keith Gandal finds COVID-19 related deaths are lower on the weekend

Keith Gandal, professor of English in the Division of Humanities and the Arts at The City College of New York, and his brother Neil Gandal, professor of economics at Tel Aviv University, found that U.S. death tolls from COVID-19 are 40% lower on the weekend. 

Deaths rise from Tuesday-Friday and come down Saturday-Monday—hitting a low on Sunday or Monday‪,‬ and the same pattern has repeated every single week of the pandemic‪.‬ Deaths during weekends were at least 40‪%‬ lower than on weekdays‪.‬ ‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

According to their research, the average death toll from COVID-19 in the U.S. is 901.4 deaths on Saturdays, 682.4 on Sundays, and 699.1 on Mondays.  On Wednesdays the death average is 1,130.2, nearly 95% higher than on an average Sunday.

The same effect was found in COVID-19 mortality rates for the rest of the world—though much weaker; there is a 20% less chance of dying from the disease on weekends than on weekdays globally. Historical research shows that there is such a weekend effect for overall deaths, but it is weaker still. 

“It seems probable that something social is going on with overall U.S. COVID-19 deaths, corresponding to differing behaviors and attitudes tied to different days of the week,” said Gandal. “Perhaps people relax more on the weekends, even in hospitals or nursing homes.”

However, the weekend effect on COVID-19 deaths does not exist in New York City. 

“Meanwhile, in NYC, the familiar rhythms of the American week were simply wiped away in April and May. Every day seemed the same, as in the movie ‘Groundhog Day.’ Except it was Coronavirus Day. All day long you heard ambulances, and the usually crowded streets were empty,” he said. “Could worrying, watching the news, and ultimately panicking about COVID-19 be increasing the death toll?”


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Ashley Arocho
p: 212.650.6460
e: aarocho@ccny.cuny.edu  
View CCNY Media Kit.