Table 1.

Patient demographic information

Median age (interquartile range), y	53 (28)
Age, N (%)
18–40 y	73,742 (31)
41–65 y	107,961 (45)
66–70 y	21,593 (9)
71–75 y	15,696 (6)
76–80 y	10,198 (4)
>80 y	12,570 (5)
Women, N (%)	122,521 (51)
Race, N (%)
White	167,105 (69)
Black or African American	20,714 (9)
Asian	25,071 (10)
American Indian or Alaska Native	3,970 (2)
Native Hawaiian or other Pacific Islander	2,214 (1)
Other	22,686 (9)
Location, N (%)
Outpatient	170,941 (71)
Emergency room	58,889 (24)
Inpatient	11,930 (5)