Table 1.

Association of race/ethnicity, demographic, economic, and occupational factors with COVID-19 case rates across U.S. Counties.

County Characteristics	Increases in cases per 100,000 people
	Univariate Analyses			Multivariable Analyses
	Estimate	95% CI	P-value	Estimate	95% CI	P-value
Proportion of Black non-Latino Population	324.7	298.0 to 351.4	<0.001	278.1	252.2 to 303.9	<0.001
Proportion of Latino Population	293.5	274.8 to 312.2	<0.001	23.8	-13.5 to 61.2	0.21
Proportion of Other Non-Latino Population	-81.0	-125.7 to -36.2	<0.001	-268.9	-310.5 to -227.3	<0.001
City/town population size	1.3	1.1 to 1.5	<0.001	-0.5	-0.6 to -0.3	<0.001
Age, Proportion age >60 years	-600.3	-673.8 to -526.9	<0.001	155.8	84.1 to 227.6	<0.001
Average Household size (per 1 person increase)	1559.5	1433.9 to 1685.1	<0.001	1117.3	934.4 to 1300.2	<0.001
Proportion with < HS education	990.8	933.2 to 1048.5	<0.001	208.8	106.5 to 311.1	<0.001
Median income	-108.6	-129.4 to -87.7	<0.001	-112.7	-143.1 to -82.2	<0.001
Proportion of essential workers	138.0	89.6 to 186.3	<0.001	-102.9	-176.8 to -29.1	0.01
Proportion of foreign-born non-citizens	903.4	843.4 to 963.4	<0.001	803.7	682.8 to 924.6	<0.001
Proportion of workers that commute using public transportation	185.8	150.0 to 221.6	<0.001	3.8	-28.9 to 36.5	0.82

For univariate and multivariate analyses.

-Changes in case rates reflect a per 10% point increase in the following variables: Proportion Black, Latino, Other non-Latino population, age over 60 years, people with less than a high school education, essential workers, foreign-born non-citizens, proportion of people who commute to work by public transportation.

-For county population size, changes in case rates reflect a per 10,000 people increase.

-For average household size, changes in case rates reflect a per 1 person increase.

-For median income, changes in case rates reflect a per $10,000 increase.