Table 1.

Summary Statistics of Cohort.

Variable	Statistics median (IQR)
PM 2.5 average concentration ($\mu g/\text{m}3$)	9.51 (7.85–11.4)
Female%	50.6% (49.9%—51.3%)
Age
% over 65 years old	23.1% (21.5%—25.0%)
% under 18 years old	16.0% (13.7%—18.6%)
Race and ethnicity
White (%)	91.2% (72.5%—97.2%)
Black (%)	4.1% (1.0%—22.7%)
Hispanic (%)	3.2% (1.6%—8.5%)
Smoker%	19.8% (16.5%—22.8%)
Binge Drinking%	14.5% (11.6%—18.7%)
Median Income ($)	55,500 (46,800—66,000)
Population	24,100 (12,900—73,500)

The data are aggregated at the county level. The Median and the IQRs are calculated based on the percentages for each variable per county. The Median and IQR of variable “PM _2.5 average concentration” was calculated from publicly available data¹⁶ . The Median and IQR of variable “Smoker%” and “Binge Drinking%” were calculated from publicly available data^17,19 . The Median and IQR of variables “Female%”, “Age”, “Race and ethnicity”, “Median Income”, and “Population” were calculated from data available from the National Cancer Institute’s Surveillance, Epidemiology, and End Results program. (IQR: inner quartile range.)