Table 1.

Kentucky County-Level Social Determinants of Health and Environmental Exposure Characteristics (N = 120).

Characteristic	Mean ± SD	Range
Annual residential radon testing rate (per 10,000 households)	13.4 ± 14.2	[2–98]
Social determinants of health variables
County median household income (thousands of dollars)	37.1 ± 10.0	[19.3–79.4]
County median home value (thousands of dollars)	100.9 ± 31.8	[56.3–240.0]
% living below poverty level	16.1 ± 6.5	[5.0–38.0]
% of the populations with at least a high school diploma	75.8 ± 7.8	[57.0–91.0]
% owner-occupied housing	74.3 ± 5.8	[57.0–88.0]
Rural–Urban Continuum Code	5.7 ± 2.8	[1–9]
Environmental Exposure Variables
Upper quartile of radon (pCi/L)	5.1 ± 3.4	[2.0–22.0]
Adult smoking prevalence, average yearly aggregate (%)	24.2 ± 5.7	[7.0–39.0]
Lung cancer incidence rate (per 100,000 aged ≥ 50 years)	289 ± 51.8	[184.0–432.0]

Note. SD, standard deviation. Annual radon testing rate and lung cancer incidence rate, 1995–2016. Rural–Urban Continuum Code 2003. Adult smoking prevalence, 2008–2010. All other variables 2006–2010.