Table 2.

Description of Patient Population

	Admissions N=55,611	Clinic visits N=39,595
Age (median, IQR)	56 (42-67)	57 (44-69)
Gender* N (%)
Female	26263 (47.2)	24144 (61.0)
Male	29345 (52.8)	15451 (39.0)
Race** N (%)
White	44719 (80.4)	29207 (73.8)
Black	8102 (14.6)	5719 (14.4)
Other	631 (1.1)	911 (2.3)
Years of education† N (%)
Less than high school	7115 (15.9)	1254 (5.3)
High school grad	17754 (39.8)	6697 (28.1)
Some college	10578 (23.7)	5354 (22.5)
College grad or higher	9206 (20.6)	10539 (44.2)
Number of admissions or clinic visits per patient ‡ (median, IQR)	1 (1-2)	2 (2-4)

Values correspond to encounters and are presented as n (%) unless noted otherwise.

^*Gender for admissions has 3 missing responses

^**Other race includes Asian, Native American, and Pacific Islander. Unknown, declined and missing race account for 2159 (3.9%) hospitalizations and 3758 (9.5%) clinic visits.

^†Education is reported for valid responses only. For admissions, 44653 (80.3%) had valid responses for education. For clinic visits, 23844 (60.2%) had valid responses for education.

^‡Timeframe for hospital patients is November 2010 through April 2012. For clinic patients, it is November 2010 through September 2011 in 2 of the 3 clinics, and May 2011 through September 2011 in the third clinic.