Table 2. County-level characteristics, overall and by lower and upper quartile SVI.
| Total Sample (n = 3142) | Lower Quartile SVI (n = 786) | Upper Quartile SVI (n = 786) | |
|---|---|---|---|
| Median (IQR) | Median (IQR) | Median (IQR) | |
| % Femalea | 0.50 (0.49, 0.51) | 0.50 (0.49, 0.51) | 0.51 (0.49, 0.52) |
| % Rurala | 0.60 (0.33, 0.88) | 0.66 (0.38, 1.00) | 0.59 (0.38, 0.79) |
| % Below poverty levelb | 13.40 (10.4, 17.5) | 9.35 (7.50, 11.20) | 19.90 (16.90, 23.80) |
| % Adult smokinga | 0.17 (0.15, 0.20) | 0.15 (0.14, 0.16) | 0.20 (0.17, 0.22) |
| % Age 65 years and overc | 0.19 (0.16, 0.22) | 0.20 (0.17, 0.23) | 0.18 (0.15, 0.20) |
| Race, % Non-Hispanic Blackd | 0.02 (0.01, 0.10) | 0.01 (0.00, 0.02) | 0.13 (0.02, 0.35) |
| Ethnicity, % Hispanicd | 0.03 (0.02, 0.10) | 0.03 (0.02, 0.06) | 0.06 (0.03, 0.20) |
| Average PM2.5a | 9.40 (7.70, 10.40) | 8.40 (6.50, 9.90) | 9.80 (8.80, 10.4) |
| # Primary care physiciansa | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) |
| Population densitya | 44.80 (16.50, 119.00) | 33.20 (7.39, 132.00) | 38.70 (19.60, 80.70) |
| Average temperature (Fahrenheit)a,e | 58.00 (44.60, 71.10) | 51.50 (38.20, 66.80) | 64.20 (52.50, 75.20) |
| Average precipitation (inches)a,e | 3.14 (1.52, 4.95) | 2.37 (1.02, 3.92) | 3.80 (1.91, 5.81) |
IQRs–Interquartile Range; PCR–Polymerase Chain Reaction; PM–Particulate Matter; SVI–Social Vulnerability Index
a Variable included in all adjusted models
b Age ≥ 65 was included only in the models for Socioeconomic Status, Race/Ethnicity/Language, and Housing/Transportation themes
c Percent poverty variable was included only in the models for Household Composition, Race/Ethnicity/Language, and Housing/Transportation themes
d Race variables was included only in models for Socioeconomic Status, Household Composition, and Housing/Transportation themes
e Daily temperature and precipitation data averaged over entire year