Table 1.

St. Louis City and County residents’ demographic and income data from which the Epharmix population was recruited.

Characteristics			St. Louis City		St. Louis County
Population estimates, n			315,685		1,003,362
Age in years, %
	18-65	61.2		55.2
	>65	11		16.8
Gender, %
	Male	48.3		47.7
	Female	51.7		52.3
Ethnicity, %
	Caucasian	43.9		69.5
	African American	49.2		24.1
Median household income 2011-2015, USD			$35,599		$59,755