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. 2021 Sep 22;66:1604004. doi: 10.3389/ijph.2021.1604004

TABLE 2.

Crude mortality rates and adjusted COVID-19 mortality rate ratios by US county-level race/ethnicity, poverty level, age, and urbanization (United States, January 22 to September 15, 2020).

Crude COVID-19 mortality rate (per 100,000 residents) Adjusted COVID-19 mortality rate ratio
Estimate 95% CI p-value
% Black
 <5 38.3 Reference
 5–9 27.5 1.40 1.11–1.78 0.005
 10–14 33.0 1.78 1.41–2.26 <0.001
 15–19 37.2 1.93 1.50–2.47 <0.001
 20–24 42.3 2.05 1.58–2.65 <0.001
 25–29 36.6 1.97 1.50–2.60 <0.001
 30–34 48.3 2.27 1.69–3.03 <0.001
 35–39 67.1 3.12 2.26–4.30 <0.001
 40–42 69.4 3.12 1.97–4.96 <0.001
 ≥43 131.9 5.44 2.66–11.13 <0.001
% Hispanic
 <15 8.6 Reference
 15–19 16.2 1.60 0.59–4.28 0.35
 20–24 25.8 2.63 1.00–6.92 0.051
 25–29 34.5 3.49 1.33–9.17 0.011
 30–34 37.7 4.15 1.58–10.94 0.004
 35–39 45.7 5.07 1.92–13.37 0.001
 40–44 59.7 5.23 1.98–13.82 0.001
 45–49 75.2 4.98 1.87–13.25 0.001
 50–54 180.2 6.30 2.24–17.77 0.001
 ≥55 116.0 11.55 3.64–36.64 <0.001
% under poverty
 <10 50.4 Reference
 10–14 55.8 1.25 1.11–1.41 <0.001
 15–19 62.2 1.61 1.41–1.84 <0.001
 20–24 69.4 2.51 2.14–2.93 <0.001
 ≥25 158.0 4.40 3.66–5.30 <0.001
% aged 60–69 years
 <5 29.4 Reference
 5–9 50.3 1.15 1.04–1.28 0.005
 ≥10 113.9 1.28 1.12–1.47 <0.001
% aged 70–79 years
 <6 27.6 Reference
 6-<7 39.6 1.05 0.94–1.17 0.39
 ≥7 77.3 1.19 1.06–1.34 0.003
% aged ≥80 years
 <4 25.4 Reference
 4-<5 34.2 1.09 0.95–1.24 0.23
 5-<6 44.8 1.17 1.02–1.34 0.028
 ≥6 88.4 1.38 1.17–1.62 <0.001
Urbanicity
 Large central metro 78.9 Reference
 Large fringe metro 63.8 1.60 1.17–2.17 0.003
 Medium metro 47.3 1.10 0.81–1.50 0.54
 Small metro 37.8 1.11 0.80–1.54 0.51
 Micropolitan 37.0 0.96 0.70–1.33 0.82
 Noncore 38.6 1.07 0.77–1.47 0.69

Abbreviations: %, percent.