Indoor Air Radon Testing Rate and Its Relationships with Various Socioeconomic and Public Health Factors in Georgia, USA

Radon (222Rn86), the second leading cause of lung cancer, is common in indoor air. However, radon testing is generally low throughout the US. In this study, we utilized 134,496 short-term indoor air radon test results from Georgia, USA. We investigated the association of the radon testing rate with a total of 104 different independent variables belonging to seven categories: (1) Demographic and Neighborhood Characteristics; (2) Housing Characteristics; (3) Literacy and Numeracy; (4) Employment and Economy; (5) Selected Social Factors; (6) Access to Computer/Internet; and (7) Status of Healthcare, Health, Well-being, and Lifestyle. We used Bivariate Correlation, Multivariate Ordinary Least Squares (OLS) Regression, and Factor Analysis, followed by factor score-based OLS regression. Significant negative associations of the testing rates were observed with population diversity, residential segregation, urban population density, younger population, housing age, household size, low literacy, unemployment, childcare cost burden, poverty, obesity, and the frequency of mentally and physically unhealthy days. In contrast, testing rates were positively associated with older population, home value, owner-occupied homes, higher literacy, higher institutional education, income, prevalence of social association, and life expectancy. The findings provide valuable insights for identifying the communities where socio-culturally relevant outreach activities would increase testing rates and minimize the public health consequences of environmental radon.