Table 2

Univariable comparison of sociodemographic and comorbidity factors between NHB and NHW race categories

NHB (n=4285)NHW (n=9469)OR*/median difference (95% CI)P value
Age, mean (SD)49.4 (17.8)56.0 (19.2)0.98 (0.98 to 0.98)<0.001
Age categories (%)
 Up to 3524.318.8Reference
 36–5028.819.81.12 (1.01 to 1.25)0.03
 51–7539.144.90.68 (0.61 to 0.74)<0.001
 >757.816.50.37 (0.32 to 0.42)<0.001
Female68.158.11.54 (1.42 to 1.66)<0.001
Median (IQR) zip income64 022
(47 303–79 658)
76 163
(60 130–102 019)
−12 141
(−14 018 to −10 263)
<0.001
Median zip income pentiles (%), pentiles of increasing income†
 Category I33.513.1Reference
 Category II21.319.70.42 (0.38 to 0.47)<0.001
 Category III22.719.10.47 (0.42 to 0.52)<0.001
 Category IV10.526.20.16 (0.14 to 0.18)<0.001
 Category V11.922.00.21 (0.19 to 0.24)<0.001
Population density for zip, median (IQR)3217.6
(2040.7–4439.7)
2488.5
(812.2–4084.3)
729.1
(603.0 to 855.2)
<0.001
Population density for zip pentiles (%), pentiles of increasing population density†
 Category I11.528.3Reference
 Category II21.720.92.52 (2.21 to 2.86)<0.001
 Category III21.816.93.20 (2.81 to 3.65)<0.001
 Category IV23.015.53.66 (3.21 to 4.17)<0.001
 Category V22.218.32.99 (2.63 to 3.41)<0.001
CCI, median (IQR)2 (0–6)3 (1–7)−1
(−1.22 to −0.78)
<0.001
CCI categories (%)
 030.824.9Reference
 1–225.122.30.91 (0.82 to 1.01)0.07
 3–619.724.00.66 (0.60 to 0.74)<0.001
 >624.428.80.68 (0.62 to 0.75)<0.001
Hypertension56.052.61.14 (1.07 to 1.23)<0.001
Diabetes (without complications)29.621.91.50 (1.38 to 1.63)<0.001
Obesity33.130.81.11 (1.03 to 1.20)0.008
  • *Unadjusted OR and 95% CI for the association between individual covariates in SARS-CoV-2 positivity or difference in median and 95% CI of the difference obtained via quantile regression.

  • †Pentiles were defined by categorising the ordered distribution of median income and population density into five categories.

  • NHB, non-Hispanic black; NHW, non-Hispanic white; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.