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. 2020 Aug 20;117(36):22035–22041. doi: 10.1073/pnas.2006392117

Table 1.

Years of temporary aging for hypothetical epidemics with mortality concentrated in a 3-mo period

Deaths Temporary aging, y
2,000,000 13.0
1,000,000 8.5
500,000 5.1
250,000 2.9
125,000 1.5

For example, during a US epidemic with 1 million deaths, an 80-y old would be exposed to the normal mortality risk of an 88.5-y old. Note that estimates assume a 10% rate of mortality increase with each year of age.