Table 1.

Demographic Characteristics (n=656)

Characteristic	Study participants, %
Sex
Male	35
Female	65
Age, y
18–29	32
30–39	14
40–49	21
50–59	22
≥ 60	10
Education level
< 8th grade	1
Some high school or < 12th grade	3
High school diploma or GED	22
Some college	39
College graduate	22
Graduate or professional degree	13
Annual household income, $
< 29,999	32
25,000 – 49,999	26
50,000 – 74,999	18
75,000 – 99,999	7
≥ 100,000	7
Not available	10
Race
African American	10
American Indian	7
Asian/Pacific Islander	7
Caucasian	80
Not available	8
Ethnicity
Hispanic	2
Not Hispanic	88
Not available	10