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. 2023 Jul 24;183(9):916–923. doi: 10.1001/jamainternmed.2023.1154

Table. Heterogeneity in Excess Deaths in Florida and Ohio, 2020-2021a.

Time Overall death count in linked data, No. % (95% CI)
Overall excess deaths Republican excess deaths Democrat excess deaths Adjusted difference in excess deaths, percentage points
Early years of COVID-19 pandemicb 258 470 20.5 (15.6 to 25.6) 22.1 (15.6 to 29.3) 18.5 (11.8 to 26.0) 2.8 (1.6 to 3.7)
Before open vaccine eligibilityc 146 691 19.1 (14.3 to 24.2) 19.4 (13.0 to 26.4) 18.8 (12.1 to 26.4) −0.9 (−2.5 to 0.3)
After open vaccine eligibilityd 111 779 22.3 (17.3 to 27.6) 25.8 (19.0 to 33.2) 18.1 (11.3 to 25.6) 7.7 (6.0 to 9.3)
a

Linked death counts do not match overall death counts during this period because not all US residents are registered to vote, and the mortality data set included approximately 83.5% of deaths in the US. Excess death rates were calculated by comparing observed deaths in a particular week to expected deaths based on a regression model. Additional details on the excess death methods and statistical analyses are provided in the eMethods in Supplement 1.

b

From March 13, 2020, to December 31, 2021.

c

From March 13, 2020, to March 31, 2021.

d

From April 1, 2021, to December 31, 2021.